Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

66results about How to "Reach the goal of energy saving and emission reduction" patented technology

Independent primary air system provided with heat pipe exchanger and working method thereof

The invention provides an independent primary air system provided with a heat pipe exchanger. The independent primary air system is characterized by comprising a precooling unit, a cooling dehumidification unit, a reheating unit and an air supply unit. The precooling unit, the cooling dehumidification unit, the reheating unit and the air supply unit are sequentially arranged between an inlet and an outlet of the primary air system; the air supply system is arranged on the outlet of the primary air system. Primary air is precooled through an evaporator side of the heat pipe exchanger; the preprocessed primary air is cooled again through the cooling dehumidification unit; the primary air is bent through an air pipe and then heated again through a condenser side of the heat pipe exchanger; the processed air is sent indoors through the air supply unit, and indoor temperature and humidity are controlled to be 26 DEG C +/-0.5 DEG C and 50%+/-1%. The heat pipe exchanger of the independent primary air system achieves heat recovery in the precooling unit and the reheating unit, heat exchange efficiency is high, extra energy loss is avoided, and discharged heat can be recovered to the maximum; indoor air quality is improved; finally an air-conditioning system can save energy by 6%-9%.
Owner:TIANJIN SINO GERMAN VOCATIONAL TECHN COLLEGE +2

Electronic sphygmomanometer based on KororKoff sound and blood pressure measuring method thereof

The invention discloses an electronic sphygmomanometer based on KororKoff sound. The electronic sphygmomanometer comprises a cuff, a gas pressure adjusting module, a KororKoff sound extracting module,a control module, a gas pressure extracting module, a pulse wave extracting module and a display module. The KororKoff sound extracting module is used for extracting KororKoff sound signals, carryingout filtering, denoising and amplifying on the KororKoff sound signals and outputting the KororKoff sound signals to the control module. The gas pressure adjusting module is used for automatically inflating and deflating the cuff under control of the control module. The gas pressure extracting module is used for measuring gas pressure signals in the cuff and outputting the gas pressure signals tothe control module and the pulse signal extracting module. The pulse wave extracting module is used for extracting pulse wave signals in the gas pressure signals and outputting the pulse wave signalsto the control module. The display module is used for receiving input signals of the control module. The invention further discloses a blood pressure measuring method of the electronic sphygmomanometer based on the KororKoff sound. Automatic inflation and deflation and automatic measurement are achieved.
Owner:SOUTHEAST UNIV

Engine oil filtering, cooling and preheating integrated system and method

The invention discloses an engine oil filtering, cooling and preheating integrated system and method. The system comprises a filtering submodule, a cooling submodule, a preheating submodule and an oil path switch submodule, wherein the preheating submodule comprises a main module body, an exhaust inlet/outlet pipe and an exhaust circulating pipe; an engine oil inlet/outlet is arranged at the bottom of the main module body; the filtering submodule is connected with an oil sump through an engine oil pump; the input end of the oil path switch submodule is connected with the filtering submodule; and the oil path switch submodule can intelligently choose to trigger engine oil heating or engine oil cooling according to the engine oil temperature. The system provided by the invention has the advantages that engine oil can be filtered, cooled and preheated; the integrated degree is high, the operation is reliable, and energy conservation and environmental protection are achieved; according to the working condition requirements, the engine oil temperature can be managed to remain in the optimum state; and therefore, the engine heating period is shortened, the engine cold-starting performance is improved, and the friction loss and the abrasion of engine parts are reduced.
Owner:大创汽车系统(南通)有限公司

Production method for making high-grade cardboard using brush wood sheet hot grinding pulp to replace OCC (obsolescence corrugated cardboard) pulp

The invention relates to a production method for making a high-grade cardboard using brush wood sheet hot grinding pulp to replace OCC (obsolescence corrugated cardboard) pulp. The production method comprises the following steps of pulp preparation: using waste box cardboards to prepare OCC pulp; using ONP (old news paper) to prepare ONP pulp; using brush wood sheets to prepare wood chip pulp, mixing the wood chip pulp, saccharomyces chevalieri and a binder, and culturing; pulp blending: using the ONP pulp as a grey board topcoat layer; mixing the OCC pulp and the wood chip pulp to form a grey board liner layer; mixing the OCC pulp and the wood chip pulp to form a grey board core layer; mixing the OCC pulp and the wood chip pulp to form a grey board bottom layer; paper making: using the approaching pulp to make the paper. Compared with the prior art, the production method has the advantages that the wood chip pulp is cultured by microorganisms, so that the thickness, compactness and stiffness of grey board are improved; the raw material structure of the grey board is optimized, the usage amount of OCC waste paper is reduced, the problem of raw material cost of the grey board is reduced, and the economic benefit is obviously improved.
Owner:LIANSHENG PAPER IND LONGHAI

Sludge drying process and equipment

The invention relates to a sludge drying process and equipment. The process is: pretreat the sludge with high moisture content until the moisture content is lower than the set value, keep the temperature of the sludge constant, and input it into the sludge drying equipment, in which the sludge is continuously discharged to the It is pushed by the mouth, and the sludge is heated to above 120°C, accompanied by continuous stirring and crushing, and at the same time, the water vapor volatilized from the sludge is continuously drawn out by the air-inducing equipment until the sludge with the required moisture content is produced. The sludge is discharged from the drying equipment. The sludge drying equipment is produced for the improvement of the traditional hollow paddle dryer. The process of the present invention is simple and easy to operate, runs smoothly, and can make the degree of sludge drying more controllable, the sludge treatment capacity is larger, and there is no risk of secondary pollution; the equipment of the present invention has simple structure, stable operating performance, and high efficiency. High, and can achieve the goal of energy saving and emission reduction, it is expected to be widely used in the field of environmental protection and in chemical, pharmaceutical, food and other industries.
Owner:SUZHOU ZILI CHEM EQUIP

Comprehensive recycling technology for iron removal slag and blast furnace soot produced in zinc smelting process adopting high acid leaching wet method

The invention discloses a comprehensive recycling technology for iron removal slag and blast furnace soot produced in the zinc smelting process adopting the high acid leaching wet method. The comprehensive recycling technology mainly comprises the processing steps of raw material preparation, magnetic roasting and magnetic separation of cinder; specifically, the iron removal slag, sulfur ore concentrate, blast furnace soot and solid fuel are mixed according to proportion to realize the step of mixed raw material preparation; the mixed raw material is fed into a magnetic roasting fluidized bed roaster for magnetic roasting so as to obtain cinder, smoke dust is recovered through waste heat of a waste heat boiler, and the smoke dust is delivered to an acid making system for acid making after being recovered, so that the step of the acid making is realized; the cinder is mixed with the smoke dust for magnetic separation after being levigated to obtain iron ore concentrate and magnetic separation tailings, and the magnetic separation tailings are used as the raw material from which the valuable metals, such as zinc and indium, are extracted, so that the step of magnetic separation of cinder is realized. The technology has the advantages that the problems influencing heat balance and oxygen balance of iron removal slag boiling-bed roasting, and the availability of roasting smoke are skillfully solved, the domestic and foreign common problems about pile-up of iron removal slag and blast furnace soot are solved, the pollution hazards are reduced, and the valuable element in the iron removal slag and blast furnace soot can be comprehensively utilized.
Owner:马永涛

Low-pressure membrane method seawater desalination device

The invention belongs to the technical field of seawater desalination, in particular to a low-pressure membrane method seawater desalination device. The device includes a shell, a reverse osmosis membrane is arranged at the bottom of an inner cavity of the shell, the reverse osmosis membrane is used for filtering seawater, a pressure sensor is arranged in the inner cavity of the shell, the pressure sensor is positioned above the reverse osmosis membrane and is used for measuring the pressure at the reverse osmosis membrane, a solar power generation module is arranged at the top end of the shell, the solar power generation module is used for generating power and storing electric quantity, a storage groove is formed in the side wall of the shell, an expansion air bag is arranged in the storage groove, and resistance wires are arranged at the two ends of the expansion air bag; according to the invention, seawater is desalinated by taking the gravity of the seawater as a working pressure,the investment of energy sources is reduced, the purposes of energy conservation and emission reduction are achieved, the structure of the seawater desalination device is simplified, and the size of the seawater desalination device is reduced, so that the seawater desalination device is suitable for seagoing vessels and civilian use and provides possibility for long-term operation at sea.
Owner:SHANDONG ZHAOJIN MOTIAN

Electricity-gas interconnected comprehensive energy system optimization scheduling method containing P2G wind curtailment start and stop

An electricity-gas interconnected comprehensive energy system optimization scheduling method containing P2G wind curtailment start and stop comprises the steps of: constructing an optimization scheduling model, wherein target functions of the optimization scheduling model comprise a unit operation cost minimum function, a wind curtailment penalty function and a carbon emission weight function; constructing constraint conditions of the optimal scheduling model, including power network constraints and natural gas network constraints, the power network constraints including electric power balanceconstraints, generator set power constraints, P2G power constraints, node voltage constraints, balance node phase angle constraints and line power constraints, wherein the natural gas network constraints include gas source point constraints, pipeline flow constraints, pipe storage constraints, gas storage tank capacity constraints, compressor flow constraints and node energy balance. P2G wind curtailment start and stop constraint: enabling the input power of P2G equipment to be all from wind curtailment power in the system operation process; and when the system has no wind curtailment, the P2G equipment is in a closed state. According to the method, the carbon emission can be effectively reduced, and the unit operation cost is reduced; and meanwhile, the established model has more practical benefits.
Owner:CHINA THREE GORGES UNIV

A low-pressure membrane seawater desalination device

The invention belongs to the technical field of seawater desalination, in particular to a low-pressure membrane method seawater desalination device. The device includes a shell, a reverse osmosis membrane is arranged at the bottom of an inner cavity of the shell, the reverse osmosis membrane is used for filtering seawater, a pressure sensor is arranged in the inner cavity of the shell, the pressure sensor is positioned above the reverse osmosis membrane and is used for measuring the pressure at the reverse osmosis membrane, a solar power generation module is arranged at the top end of the shell, the solar power generation module is used for generating power and storing electric quantity, a storage groove is formed in the side wall of the shell, an expansion air bag is arranged in the storage groove, and resistance wires are arranged at the two ends of the expansion air bag; according to the invention, seawater is desalinated by taking the gravity of the seawater as a working pressure,the investment of energy sources is reduced, the purposes of energy conservation and emission reduction are achieved, the structure of the seawater desalination device is simplified, and the size of the seawater desalination device is reduced, so that the seawater desalination device is suitable for seagoing vessels and civilian use and provides possibility for long-term operation at sea.
Owner:SHANDONG ZHAOJIN MOTIAN

Twelve-gear electronic control mechanical type automatic transmission

The invention provides a twelve-gear electronic control mechanical type automatic transmission which comprises a six-gear main box, a two-gear subsidiary box, a clutch and an electronic control unit. By the adoption of a main and subsidiary box structure, electronic control gas drive structures are adopted in a gear shift execution mechanism of the main box and a gear shift execution mechanism of the subsidiary box, a gas source of a vehicle is fully utilized, increase of the cost is reduced, and meanwhile the reliability of a system can be improved; meanwhile, an electronic control pneumatic clutch control system is adopted, and therefore power transmission is controlled by fully utilizing the gas source of the vehicle and the character of large separating force of the clutch; in the whole electronic control pneumatic arrangement and connection processes, the modularization arrangement is adopted, different execution mechanisms and electronic control equipment are arranged nearby, signals are collected, fed back and sent to the different parts through lines, and corresponding operation is finished through control over a gas channel; the ability to adapt to and match with transmissions of different mechanical design structures is improved, repair and maintenance can be carried out specifically, the structure is simple, the cost is low, and controlling is convenient and direct to carry out.
Owner:SHAANXI FAST GEAR CO

Waste heat ammonia distillation device and waste heat ammonia distillation method for gas primary cooler

The invention discloses a waste heat ammonia distillation device and a waste heat ammonia distillation method for a gas primary cooler. The waste heat ammonia distillation device for the gas primary cooler comprises an ammonia distillation tower, wherein the ammonia distillation tower comprises a flashing section and a dephlegmator, a residual ammonia water is formed in the upper part of the ammonia distillation tower, a waste water outlet is formed in the bottom of the flashing section, a waste water inlet is formed in the upper part of the waste water outlet, the waste water outlet is connected with a waste water circulating pump, the waste water circulating pump is connected with the upper section of the primary cooler, the upper section of the primary cooler is connected with the waste water inlet in the upper part of the flashing section of the flashing tower, an outlet in the top of the dephlegmator is connected with an inlet of a condenser, an outlet of the condenser is connected with an inlet in the middle part of a gas-liquid separator, an outlet in the upper part of the gas-liquid separator is connected with a vacuum system, noncondensable gas pumped from the vacuum system is sent back into a gas pipeline, and an outlet in the bottom of the gas-liquid separator is connected with a follow-up system. The waste heat ammonia distillation device for the gas primary cooler has the advantages that heat of a high-temperature part in saturated raw gas of the gas primary cooler is recycled as a residual ammonia water ammonia distillation heat source, less ammonia distillation waste water is discharged, usage amount of circulating cooling water of the gas primary cooler is reduced, and the aims of saving energy and reducing emission are achieved.
Owner:JINAN METALLURGICAL CHEM EQUIP CO LTD +1

Energy-saving ecological resource recycling type ecological restoration integrated system and application thereof

ActiveCN107162199ATo achieve the effect of ecological restorationAchieve removalTreatment using aerobic processesWater aerationMicro nanoAquatic animal
The invention discloses an ecological combination floating bed. An ecological floating bed is divided into an upper aquatic plant layer and a lower deep treatment layer; the aquatic plant layer is composed of a plurality of floating bed splicing plates, a planting basket is installed on each floating bed splicing plate, aquatic plants are planted in the planting baskets, the deep treatment layer is divided into a treatment zone A, a treatment zone B and a treatment zone C from outside to inside, the treatment zone A is mainly composed of zeolite loaded nano-TiO2, the treatment area B is mainly composed of an aquatic animal cage, the treatment zone C is mainly composed of an artificial medium, the floating bed is fixed by four fixing rods, and the periphery of the floating bed is made up of a fishing net. The invention also discloses an energy-saving ecological resource recycling type ecological restoration integrated system and application thereof. Three recovery technologies of micro-nano aeration, a multi-functional ecological bag and the three-dimensional partition combined ecological floating bed are combined to not only realize the removal of pollutants of water per se, but also control a bunding source and intercept pollution from the bunding source, and cause interception to bank pollutants, so as to achieve the effect of integrated ecological restoration of bank and water.
Owner:南京市给排水工程设计院有限公司

Energy-saving type wireless video business resource scheduling method based on user experience

InactiveCN102638876ASubjective perceived quality assuranceSubjective perceived quality minimizationPower managementHigh level techniquesService experienceVideo transmission
The invention discloses an energy-saving type wireless video business resource scheduling method based on user experience. Video distortion in wireless video transmission business is mainly caused by two parts, namely the distortion of an information source introduced during the encoding process and the distortion of a channel caused by transmission of video packets in an unreliable wireless channel. The power consumption of a system during the wireless video transmission business can be divided into video encoding power and video transmission power. Based on the energy-saving type wireless video business resource scheduling method, a power-business and system parameter-QoE (quality of experience) mapping model is established, and the video encoding rate and parameters of an AMC (adaptation mode controller) mode are utilized as intermediate variables for establishing a mapping model between the power consumption of the system and subjective perceptual quality of users. A target function is established according to the model so as to realize the purposes of reducing the power consumption of the system, saving energy and reducing emission on the basis of meeting the subjective perceptual quality of the users; and a PSO (particle swarm optimization) algorithm is adopted for performing resource scheduling and distribution for all the users. By adopting the technical scheme disclosed by the invention, the problems of large power consumption of the system and incapability of ensuring the subjective perceptual quality of the users in the current wireless video transmission business can be solved.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Pretreatment method for rectifying and recovering dimethyl formamide (DMF) waste liquid of polyurethane (PU) synthetic leather

The invention discloses a pretreatment method for rectifying and recovering dimethyl formamide (DMF) waste liquid of polyurethane (PU) synthetic leather. The pretreatment method comprises the following steps: (1) pumping the DMF waste liquid from a waste water storage tank of a PU synthetic leather production line into a coarse filter consisting of a stainless steel filter screen by using an infusion pump and performing first-stage separation to obtain coarse filtration DMF waste liquid; and (2) allowing the coarse filtration DMF waste liquid obtained by first-stage separation to enter a microfiltration hollow fiber membrane separation device and performing second-stage separation to obtain a DMF fine solution for rectification and recovery. By the pretreatment method for rectifying and recovering the DMF waste liquid of the PU synthetic leather provided by the invention, the problems of high pollution and high energy consumption of rectification and recovery of the DMF waste liquid in the PU synthetic leather industry are solved; the aims of energy saving and emission reduction in the production process of the PU synthetic leather are fulfilled, and economic benefit, social benefit and environmental benefit are organically unified.
Owner:ZHEJIANG UNIV OF TECH

Automatic production process for preparing fibers by combining ramie finishing

The invention discloses an automatic production process for preparing fibers by combining ramie finishing. The process comprises the following steps of: (a) feeding a ramie raw material into a softening machine, removing partial impurities by mechanical kneading, and then coiling the strip-like ramie raw material into a dipping barrel; (b) pushing the dipping barrel into a bast fiber pretreatment machine, performing vacuum pretreatment, pushing out the ramie raw material and storing the ramie raw material for 2 to 3 hours to finish dipping treatment of the ramie raw material; and (c) and sequentially performing degumming and fiber opening, impurity removal and fiber opening, washing and fiber opening, bleaching, rinsing, oil supply softening and trembling on the dipped ramie raw material by using a degumming and fiber opening machine, an impurity removal and fiber opening machine, a washing and fiber opening machine, a bleaching machine, a rinsing machine, an oil supply softening machine and a trembling machine respectively. By the process, continuous mechanical production of the whole degumming process can be realized, and the purposes of saving energy, reducing emission, reducing consumption and improving the quality of the fibers are fulfilled.
Owner:SICHUAN RES INST OF SILK SCI

Efficient double-cavity turbulent heat exchanger

The invention discloses an efficient double-cavity turbulent heat exchanger, belongs to a heat exchange device, and particularly relates to a heat exchange device in which two heat mediums do not make direct contact. The heat exchanger comprises a heat exchanger barrel body with a primary heat medium inlet, a primary heat medium outlet, a secondary heat medium inlet and a secondary heat medium outlet, and heat exchange tube bundles installed in the barrel body. The heat exchanger is characterized in that the barrel body is rectangular, a double-cavity partition plate in the middle of the rectangular barrel body divides the barrel body into an upper cavity and a lower cavity, the interior of the upper cavity and the interior of the lower cavity are respectively provided with one heat exchange tube bundle, the two ends of each cavity are respectively provided with a rectangular blocking plate, a round tube plate is arranged on each blocking plate, the two ends of each turbulent thread heat exchange tube are fixed to the tube plates, the outer sides of the tube plates are connected with a tube box through bolts, the secondary heat medium inlet and the secondary heat medium outlet are respectively formed in the tube box, a coupling cock is arranged between the secondary heat medium inlet and the secondary heat medium outlet of the upper cavity and the lower cavity located at the same end, the primary heat medium inlet and the primary heat medium outlet are formed in the upper portion and the lower portion of the barrel body respectively, a primary heat medium standby inlet and a primary heat medium standby outlet are formed in the portions, on the two sides of the double-cavity partition plate, of the barrel body respectively, and a primary heat medium double-cavity coupling cock is installed between the primary heat medium standby inlet and the primary heat medium standby outlet.
Owner:山东鲁润热能科技有限公司

Kitchen waste fermentation bin supplying heat through air energy and solar energy

The invention belongs to the field of environmental protection relevant to kitchen waste treatment and relates to a kitchen waste fermentation bin supplying heat through air energy and solar energy, The fermentation bin comprises a solar heat collection array, a first temperature detector, a first check valve, a first circulating water pump, a solar water tank, a second temperature detector, a second check valve, a controller, a second circulating water pump, a kitchen waste fermentation bin body, a double-S hot water circulating loop device, a third check valve, a third circulating water pump, an expansion water tank and an air energy unit, wherein the double-S hot water circulating loop device comprises a water inlet pipe, a water outlet pipe and a partition plate. The kitchen waste fermentation bin can provide heat for kitchen waste fermentation by use of the air energy and the solar energy, advantage complementation on heat supply of the air energy and the solar energy is brought into full play, and electricity cost is saved; and the double-S hot water circulating loop device can make a heat carrier fully flow by the bottom of the kitchen waste fermentation bin and transmit heat, so that continuous stability of fermentation temperature is maintained.
Owner:牟杰

Efficient energy-saving environment-friendly oil nozzle

Disclosed is an efficient energy-saving environment-friendly oil nozzle. Under the circumstance that pure oxygen serves as a combustion improver, dozens of oil delivery pipes are arranged from an oil pump to the oil nozzle, an electromagnetic valve is arranged on the upper portion of each oil delivery pipe and controlled by a microcomputer, dozens of oil injectors are arranged on the oil nozzle, and each oil delivery pipe is connected with one oil injector. The microcomputer acquires pressure and temperature parameters of the oxygen from oxygen-inlet nozzles of an engine and a steam turbine through sensors, variety, pressure and viscosity parameters of outlet fuel oil of the oil delivery pipes of the oil pump are combined and then subjected to matching processing of the microcomputer, the optimal oil supply proportion is selected according to the standard that a fuel-oxygen ratio shows that oxygen is excessive, oil injection quantity of the oil injectors is controlled, an instruction is given out to inject oil according to the optimal proportion so as to achieve excessive pure oxygen combustion and enable instantaneous effective combustion rate of fuel to reach a largest limiting value, and accordingly energy saving and emission reduction are achieved. The efficient energy-saving environment-friendly oil nozzle has the advantages of energy saving and emission reduction.
Owner:宁波高新区世代能源科技有限公司

Automatic transmission of six-gear light truck

InactiveCN106678338AReduce speed differenceSatisfy the requirement of shifting comfortGearing controlGearing detailsTransmitted powerSolenoid valve
The invention discloses an automatic transmission of a six-gear light truck. The automatic transmission of the six-gear light truck comprises a transmission shell, a first shaft, two intermediate shafts, a second shaft, a control system and a clutch control system, wherein the first shaft, the two intermediate shafts, the second shaft, the control system and the clutch control system are arranged in the shell; various sensors, various executing mechanisms and various solenoid valves are connected with a transmission TCU through wire harnesses; power sources of the various executing mechanisms are from an air source of the whole truck; the first shaft transmits power of an engine to the second shaft through the two intermediate shafts; the second shaft transmits the power to a transmission shaft of the truck through an output flange; and a sliding sleeve and a gear reversing sliding sleeve which are matched with the control system to switch over gears are arranged on the second shaft. The speed ratio of the transmission is quite poor, the speed difference of the engine can further be reduced during gear shifting, and therefore, requirements on comfort of gear shifting of the truck are met. On the basis of a manual transmission, an automatic gear shifting function is fulfilled by integration of a gear shifting control system and an electronic control unit, and the automatic transmission of the six-gear light truck has good production succession for transmission production enterprises, and is wide in market prospects.
Owner:SHAANXI FAST GEAR CO

Air conditioner compressor frequency control method

InactiveCN110454896ATo achieve the effect of rapid cooling and heatingImprove comfortFluid heatersMechanical apparatusTime changesFuzzy control system
The invention provides a frequency control method of a compressor of an air conditioner comprising a fluorine machine system and a water machine system. The control method comprises the following steps that after the water machine operates, according to a set target temperature, a detected actual outlet water temperature and the change condition of a difference value of the target temperature andthe detected actual outlet water temperature, the time change rate of the compressor frequency is determined by adopting a fuzzy control rule, and the operation of the compressor is controlled according to the change rate; and a high-pressure intensity value, a low-pressure intensity value and a discharge pipe temperature of the compressor are divided into a plurality of intervals, the time changerate of the compressor frequency is determined according to the corresponding physical quantity numerical value by detecting the high-pressure intensity value, the low-pressure intensity value and the discharge pipe temperature of the compressor, and the operation of the compressor is controlled according to the change rate. By adopting the control method, the frequency of the compressor can be more accurately adjusted, so that the required temperature can be efficiently reached, the energy consumption can be reduced, and the purpose of protecting the compressor can be achieved.
Owner:MITSUBISHI HEAVY IND HAIER QINGDAO AIR CONDITIONERS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products