China latest patents query

The latest invention patents collect the data information of China invention patents from 2000 to 2024, typesetting according to the date of patent publication, including patent number, application date, invention Bibliographic data, abstracts, and specification data of people are convenient for scientific researchers to quickly browse and search for patents.

Method for preparing CIGS film based on photochemistry deposition

ActiveCN104362222AQuality improvementHigh utilization rate of raw materialsFinal product manufactureVacuum evaporation coatingPolymer scienceIndium

Owner:CENT SOUTH UNIV

Display device, backlight module and frame unit

ActiveCN102679285AAvoid panningImprove stabilityLighting support devicesOptical light guidesDisplay deviceEngineering

Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Model transformation method from Web service combination to colored Petri network

ActiveCN103902282AFocus on consistencyFunctions that support expression mappingSpecific program execution arrangementsOWL-SColoured Petri net

Owner:CHINA STANDARD SOFTWARE

Image rendering method and device, computer equipment and storage medium

ActiveCN110012278AImprove display qualityColor signal processing circuitsSelective content distributionVisual saliencyPixel based

Owner:TENCENT TECH (SHENZHEN) CO LTD

Screen supporting frame

ActiveCN111637344ARealize switchingFurniture partsStands/trestlesEngineeringSecond screen

Owner:宁波通源电器有限公司

Automobile engine mounting device

InactiveCN106904068AEasy to passImprove shock absorption stiffnessJet propulsion mountingInternal combustion mountingEngineeringEngine mount

Owner:佛山市长河铭川金属制品有限公司

Sound production device monomer, sound production module and electronic terminal

ActiveCN110418254AOptimize the connection methodImprove connection reliabilityElectrical transducersSound productionMechanical engineering

Owner:GOERTEK INC

Method for purifying recombinant human lysozyme

ActiveCN107446905AAvoid the freeze-drying processHigh yieldGlycosylasesChromatographic columnLysozyme

Owner:SHAANXI HUIKANG BIO TECH CO LTD

System capable of automatically removing ice on ground surface by applying natural resources

ActiveCN103276652ADissolve fastNot easy to freezePaving detailsNatural resourceSnowpack

Owner:陈瑞文 +2

Producing method of micromanipulation holding needle

ActiveCN104099239AEffectively fixedReduce manufacturing costBioreactor/fermenter combinationsBiological substance pretreatmentsBreak the glassBiomedical engineering

Owner:INST OF ANIMAL SCI OF CHINESE ACAD OF AGRI SCI

Circular polaroid and AMOLED (active matrix organic light emitting diode) display device with same

ActiveCN105988154ASave energyAvoid the disadvantages of uneven brightnessPolarising elementsIdentification meansTectorial membranePhase difference

Owner:EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD

Surgical instrument positioning assembly of polar coordinate pediatric surgical robot

ActiveCN112022354AIncrease flexibilityImprove convenienceDiagnosticsSurgical robotsSurgical robotEngineering

Owner:心弦跳动生物医疗科技(青岛)有限公司

System and method for measuring dynamic crumple speed of automobile steering column

ActiveCN111157756ASolving the Difficult Problem of Measuring Steering Column Collapse VelocityLow costLinear/angular speed measurementVehicle steering/rolling behaviourSteering columnSimulation

Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Switch module, front-end module, and driving method for switch module

ActiveCN106452462AReduced propagation lossElectronic switchingTransmissionEngineeringAntenna element

Owner:MURATA MFG CO LTD

Online automatic balance executing device of rotor of machine rotating at high speed

InactiveCN101587004AHigh adjustment accuracyNo unlockStatic/dynamic balance measurementEnergy transferInterference fit

Owner:XI AN JIAOTONG UNIV

Water-absorption core body and preparing method and application thereof

ActiveCN107242938AAbsorbent padsBaby linensFluff pulpEnvironmental engineering

Owner:HANGZHOU CREDIBLE SANITARY PRODS

Air suction pipe for yarn strip bundling device for spinning device and method for manufacturing the same

ActiveCN102094266AImprove qualityDrafting machinesYarnEngineering

Owner:TOYOTA IND CORP

Elderly disease treatment effect assessment method, apparatus and device, and storage medium

PendingCN109740848AGuaranteed accuracySimplify the performance review processResourcesDiseaseTherapeutic effect

Owner:深圳平安医疗健康科技服务有限公司

Vehicle collision warning system and method based on multiradar

PendingCN106864366AImprove securityTimely responseSignalling/lighting devicesControl devicesRadarCollision warning systems

Owner:NANJING INST OF TECH

Optimization method for transient-state dynamic performance of engine

InactiveCN109322754AQuick responseTransient acceleration performance optimizationElectrical controlMachines/enginesTransient stateLower limit

Owner:GUANGXI YUCHAI MASCH CO LTD

Public sign classification method and device

ActiveCN106250378AEasy to classifyNo human intervention requiredRelational databasesSpecial data processing applicationsFeature vectorClassification methods

Owner:TENCENT TECH (SHENZHEN) CO LTD

Traditional Chinese medicine for preventing infectious bovine rhinotracheitis

InactiveCN105596627ACompatibility is reasonableImprove the immunityRespiratory disorderPlant ingredientsInfectious bovine rhinotracheitisEuphorbia

Owner:周晓丽

Underwater binocular stereo vision measuring system and method based on dynamic reference coordinate system

ActiveCN110260820AHigh measurement accuracyNo systematic biasPicture taking arrangementsCharacter and pattern recognitionSingular value decompositionObservational error

Owner:SHANGHAI UNIV

Serial thyristor driver suitable for high-voltage and high-power pulse discharge

PendingCN107835007AExcellent trigger synchronizationImprove reliabilityElectronic switchingHigh rateHigh pressure

Owner:HUAZHONG UNIV OF SCI & TECH

Special-flavor nutritional-type fermented cereal brewing powder for agricultural biological fermentation and preparing technology thereof

InactiveCN109645324AGood brewabilityNatural sweet and sour flavorFood freezingFood shapingFreeze-dryingFood flavor

Owner:无锡赞匠生物科技有限公司

Group chat permission control method, team instant messaging application and background server

ActiveCN113746783AFacilitate communicationImprove work efficiencySpecial service provision for substationEngineeringTeam management

Owner:TENCENT TECH (SHENZHEN) CO LTD

Rectangular tube bundle heat exchanger adopting swirl plate support and its intensified heat-conduction method

InactiveCN101086427AIncrease board spacingAvoid compression deformationStationary conduit assembliesHeat exchanger casingsEngineeringHeat exchanger

Owner:SOUTH CHINA UNIV OF TECH

Soft package sofa capable of preventing long-time static sitting

PendingCN113974367AAvoid harmPlay a protective effectSofasCouchesPhysical medicine and rehabilitationEngineering

Owner:湖州喜瑞家具制造有限公司

Treatment method of traditional Chinese medicine wastewater

PendingCN106673372AEasy to installEasy to operateSludge treatment by de-watering/drying/thickeningTreatment using aerobic processesSocial benefitsFlocculation

Owner:HENAN HENGAN ENVIRONMENTAL PROTECTION TECHCO LTD

Medicine for treating facial acne

InactiveCN108210819AGood treatment effectFresh smellHydroxy compound active ingredientsPharmaceutical delivery mechanismYolkBletilla striata

Owner:王汉伟

Method for homogenization and high purification preparing Ni-Cr-Co-Fe-Mn high-entropy alloy through electron beam smelting

ActiveCN110423904AHigh purityUniform compositionVacuum pumpingHigh entropy alloys

Owner:DALIAN UNIV OF TECH

Atrial septal defect occluder for heart

PendingCN111358510AConvenient card connectionGood deformabilitySurgeryRubber materialAtrial septal defects

Owner:FUJIAN MEDICAL UNIV UNION HOSPITAL

Double-layer adjusting dinner plate

InactiveCN104414313AEasy to moveMeeting dietary needsPlatesEngineering

Owner:XIAN YONGCHENG ELECTRONICS SCI & TECH

Selective laser sintering SLS laid powder preheating device

InactiveCN106001575AWarm up evenlyHigh precisionAdditive manufacturing apparatusIncreasing energy efficiencyInfraredSelective laser sintering

Owner:ZHONGBEI UNIV

Method and system for selecting reference probe element of linear array scanning remote sensor

PendingCN112001263ASpectrum investigationScene recognitionEarth observationImage resolution

Owner:NAT SATELLITE METEOROLOGICAL CENT

Traditional Chinese medicine preparation for treating cardiovascular and cerebrovascular diseases

InactiveCN111437350AImprove microcirculationReduce viscosityMetabolism disorderAntipyreticDiseaseCoronary heart disease

Owner:徐敏枝

Power performance optimization method of vehicle and system with power performance optimization function

ActiveCN110040127AMeet needsMitigation of weakened motivationHybrid vehiclesPower performanceIntelligent control

Owner:ZHEJIANG GEELY HOLDING (GROUP) CO LTD +1

Machining technology of fully-brushed aluminum alloy hub

InactiveCN106826412AEasy to produceIncrease productivitySpraying apparatusMaterials scienceAluminium alloy

Owner:QINHUANGDAO ZHONGQIN BOHAI HUB CO LTD

Multi-component easy-care fabric

InactiveCN104389077AFeel strongStrong three-dimensional senseWoven fabricsYarnPolyesterFiber

Owner:JIANGSU NIJIAXIANG GROUP WORSTED TEXTILE

Air conditioner indoor unit installation bracket capable of being installed quickly

InactiveCN107490173AAchieve regulationFulfil requirementsLighting and heating apparatusSpace heating and ventilation detailsPush and pullReciprocating motion

Owner:SHENZHEN WOHAISEN TECH CO LTD

Mounting method of stirring device

ActiveCN113546544ASmall footprintEasy to operateRotary stirring mixersMixer accessoriesEngineeringSmall footprint

Owner:SHUANGLONG GROUP

Red koji rice blood pressure-lowering and lipid-lowering nutritional powder and preparation method thereof

PendingCN110477379AAvoid damageReduce high blood pressureFood ingredient as anti-caking agentFood shapingBiotechnologyRed yeast rice

Owner:美安康质量检测技术(上海)有限公司

Pulse-free escalator system

InactiveCN100379676CEscalatorsEngineeringMechanical engineering

Owner:OTIS ELEVATOR CO

Overall-bamboo anti-cracking processing method

InactiveCN101927516AReduce the probability of crackingHigh strengthWood treatment detailsCork treatment detailsAcetic acidWeather resistance

Owner:BEIJING FORESTRY MACHINERY RES INST OF STATE FORESTRY ADMINISTRATION

Luggage space splitter plate and knapsack with luggage space splitter plate

InactiveCN104522978AFree and efficient useSimple structureOther accessoriesEngineeringFastener

Owner:泉州沥阳手袋有限公司

Single-host multi-disk cluster communication method, device and system

InactiveCN113613347ARealize monitoringRealize managementTransmission systemsConnection managementComputer hardwareComputer network

Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Potato screening device

ActiveCN104190632AReduce physical laborImprove cleaning efficiencySortingImpellerEngineering

Owner:甘肃祥和种业有限责任公司

Two-year triple-cropping water and fertilizer efficient cultivation method for grain crops in hilly and dry land

InactiveCN112616589AImprove utilization efficiencyIncrease productionFertilising methodsCereal cultivationSoil scienceSoil depth

Owner:SHANDONG YANTAI AGRI SCI & TECH INST

Panorama type bus air pipe assembly

InactiveCN105034752AEasy to operateAir-treating devicesVehicle heating/cooling devicesLight guideThermal insulation

Owner:HUNAN TONGDA AUTOMOTIVE INTERIOR PARTS

Auxiliary system and method for English listening evaluation

InactiveCN114495608ASpend less energyAvoid laborNatural language data processingElectrical appliancesTelecommunicationsData science

Owner:临沂职业学院

Novel arabinosyladenine derivatives

InactiveCN1146573CIncrease resistanceDoes not affect antiviral effectSugar derivativesAntiviralsDiseaseArabinosyladenine

Owner:NIPPON ZOKI PHARM CO LTD

Hub assembly convenient to replace for electric balance car

InactiveCN114523800AEasy to replaceQuick dismantlingStatic/dynamic balance measurementTyresMotronicSupport plane

Owner:JIANGSU YILINLIDA TECH CO LTD

Electric connector

PendingCN113131241AImprove shielding effectCoupling protective earth/shielding arrangementsElectrical connection

Owner:FUDING PRECISION IND ZHENGZHOU CO LTD +1

Motor rotor and motor

InactiveCN112542910AHigh mechanical strengthImprove performanceMagnetic circuit rotating partsMagnetic barrierElectric machinery

Owner:CRRC YONGJI ELECTRIC CO LTD

Method and system for remaining ascending synchronization

ActiveCN101154984AAvoid occupyingReduce occupancySynchronisation arrangementRadio transmission for post communicationTelecommunicationsData traffic

Owner:DATANG MOBILE COMM EQUIP CO LTD

Target switching method, server node and colony system

ActiveCN101854373AImprove reliabilityMultiprogramming arrangementsNon-redundant fault processingComputer networkTime stamping

Owner:HUAWEI TEHCHNOLOGIES CO LTD

Integrated oven

InactiveCN109000297AAchieve cleaningImprove satisfactionDomestic stoves or rangesLighting and heating apparatusWater sourceEngineering

Owner:FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD

Antineoplastic compound of red pineapple flower alkali A, preparation method and application thereof

InactiveCN101245048AImprove anti-tumor effectOrganic chemistryAntineoplastic agentsMass numberUltraviolet

Owner:SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY

Image classification method and device based on deep learning, server and medium

PendingCN112163635AImprove training efficiencyImprove classification accuracyCharacter and pattern recognitionClassification methodsFeature data

Owner:PING AN TECH (SHENZHEN) CO LTD

Device for classifying and sorting potato

InactiveCN103084329ASievingScreeningEngineeringMechanical engineering

Owner:莫小漫

Face recognition quick retrieval method and device, server and storage device

ActiveCN110942014AAvoid the problem of unstable final retrieval resultsCharacter and pattern recognitionEnergy efficient computingComputer visionFeature screening

Owner:ZHEJIANG DAHUA TECH CO LTD

Method and system for downloading video file at background in IOS system

ActiveCN105335242AImprove fault toleranceProgram initiation/switchingInterprogram communicationFault toleranceApplication software

Owner:ALIBABA (CHINA) CO LTD

Stator

InactiveCN102480177AGuaranteed insulation performanceShorten takt timeWindings insulation shape/form/constructionMagnetic circuit stationary partsEngineeringMechanical engineering

Owner:HONDA MOTOR CO LTD

Transportation trolley

ActiveCN103863377ASimple structureImprove performanceHand carts with multiple axesRecovery positionTransport engineering

Owner:王忠利

Refining system and method of biological vinegar

PendingCN109054882AEfficient removalReliable workmanshipBiofuelsPyroligneous acid productionDistillationOil water

Owner:SOUND ENVIRONMENTAL RESOURCES

Goose feed

InactiveCN101919499ALoudFast growthFood processingAnimal feeding stuffBaical Skullcap RootScaphium

Owner:王嵩

Reading and writing desktop board with reversible desktop board

InactiveCN110786635AEasy to slideEasy to useExtensible tablesWriting tablesEngineeringMechanical engineering

Owner:江西育佳校具有限公司

Method for evaluating influence of shield tunnel undercrossing on existing shield tunnel

ActiveCN110245401AEasy to operateUnderground chambersHydro energy generationEngineeringVertical displacement

Owner:ZHEJIANG UNIV CITY COLLEGE

Separation device on lithium battery dismantling machine and lithium battery dismantling machine

ActiveCN108539311AImprove recycling efficiencyRealize separation operationWaste accumulators reclaimingBattery recyclingElectrical batteryNew energy

Owner:JIANGSU ZHIHANG NEW ENERGY

Preparation method of soluble fluorinated polyimide and application of soluble fluorinated polyimide in NTO acid protection

ActiveCN114292399ALow release strengthImprove acid corrosion problemNitrated acyclic/alicyclic/heterocyclic amine explosive compositionsNon-explosive/non-thermic compositionsPolymer scienceExplosive Agents

Owner:BEIJING INSTITUTE OF TECHNOLOGYGY +1

Silicon wafer cleaning device, silicon wafer cleaning method and silicon wafer storage vehicle

InactiveCN110479685APrevent oxidationFirmly attachedCleaning using liquidsCleaning methodsEngineering

Owner:XIAN ESWIN MATERIAL TECH CO LTD +1

Multifunctional self-sterilizing mouse

InactiveCN101819478AEasy to useLow priceInput/output processes for data processingTransducer circuitsTransformerThe Internet

Owner:洪炜栋 +1

Bending-resistant data transmission line

InactiveCN110690619AImprove fatigue resistanceImprove toughnessEngagement/disengagement of coupling partsRelieving strain on wire connectionStructural engineeringData transmission

Owner:江苏开开电缆有限公司

Sidewalk intersection guardrail device capable of improving safety based on magnetic field change

InactiveCN113174885ASimple structureEasy to useTents/canopiesRoadway safety arrangementsGear wheelEngineering

Owner:韦孟娜

Optical modulator, modulation method and optical modulation system

ActiveCN110149153AImprove stabilityAchieving Intensity ModulationElectromagnetic transmittersLight demodulationIntensity modulationOptical polarization

Owner:HUAWEI TECH CO LTD

Seabed fattening and trapping device for purple sea urchins

PendingCN111406692AEasy to put inEnsure fullClimate change adaptationPisciculture and aquariaEngineeringSea urchin

Owner:ZHANGZIDAO GRP

Multi-round dialogue method and device in knowledge question-answering system

PendingCN112199473AGuaranteed accuracyNot easy to loseNatural language data processingText database queryingQuestions and answersData mining

Owner:SHANGHAI MININGLAMP ARTIFICIAL INTELLIGENCE GRP CO LTD

Method for continuously extracting active component from eucommia leaf

InactiveCN1242963CHigh economic valueIncrease profitOrganic compounds purification/separation/stabilisationSugar derivativesChlorogenic acidEthyl acetate

Owner:NORTHWEST A & F UNIV

One-step preparation type transition metal modified molecular sieve monolithic catalyst and method

InactiveCN109482226AGood activity and stabilityGood hydrothermal stabilityNitrous oxide captureGas treatmentMolecular sieveSlurry

Owner:昆明贵研催化剂有限责任公司

Plastic building formwork for pouring floor connection surface

InactiveCN110453912AImprove stabilityNo need for manual fixationForms/shuttering/falseworksHydraulic cylinderArchitectural engineering

Owner:夏勇

Character recognition model training method, device and equipment

PendingCN112241749AReduce workloadLow costCharacter and pattern recognitionMachine learningTraining methods

Owner:SHANGHAI GOLDWAY INTELLIGENT TRANSPORTATION SYST CO LTD

Titanium-base methanated catalyst, preparation method thereof and application thereof

ActiveCN102755894AImprove heat resistanceImprove performanceHydrocarbon from carbon oxidesMetal/metal-oxides/metal-hydroxide catalystsHigh concentrationMethanation

Owner:SANLONG CATALYST

Motor imagery electroencephalogram signal classification method and system

PendingCN113229828ADescribe non-linearityImprove accuracyCharacter and pattern recognitionDiagnostic recording/measuringSignal classificationOriginal data

Owner:SHANDONG NORMAL UNIV

Lattice column positioning and verticality adjusting system

PendingCN113562629AReduce misalignmentImprove bearing capacityFoundation testingCranesClassical mechanicsStructural engineering

Owner:HAITONG CONSTR GRP

Automatic electric saw platform with guide rail

InactiveCN105618850AEasy to cutSave human effortMetal sawing devicesMaintainance and safety accessoriesLinear motionEngineering

Owner:TIANJIN YUANHANG TECH CO LTD

Anti-theft electric mortise lock for roller shutter door

PendingCN112942992AImprove closing effectLower working heightNon-mechanical controlsElectric machineLocked plate

Owner:FUJIAN ANLIN INTELLIGENT SCI & TECH

Switching method and system for browsing function and search function of mobile terminal page

ActiveCN106980681AImprove usabilityImprove satisfactionSpecial data processing applicationsInput/output processes for data processingUsabilityWorld Wide Web

Owner:CTRIP COMP TECH SHANGHAI

Hydrotalcite-ammonium polyphosphate compound and preparation method, application and composition thereof

ActiveCN113980352AImprove thermal stabilityImprove flame retardant performanceBio-packagingPhysical chemistryHydrotalcite

Owner:BAOTOU RES INST OF RARE EARTHS

Zirconic desulphurization adsorbent, preparation method and application thereof

ActiveCN102114406AOther chemical processesSilicon compoundsOrganic sulfide compoundSorbent

Owner:CHINA PETROLEUM & CHEM CORP +1

Spray gun cups, receptacles, and methods of use

ActiveCN107847956ALevel indicatorsLiquid spraying apparatusEngineeringMechanical engineering

Owner:3M INNOVATIVE PROPERTIES CO

Spraying dust-settling device for constructional working face of constructional engineering

InactiveCN113769518ATo achieve the effect of reciprocating rotationSolve the discomfortUsing liquid separation agentWater storage tankElectric machine

Owner:高浩钧

Interference signal modulation method for injection-type interference semi-physical radar simulator

ActiveCN110988823AReasonable designClose to the actual combat environmentWave based measurement systemsRadar signal processingRadio frequency

Owner:CSIC WUHAN LINCOM ELECTRONICS

A DNA bar code standard gene sequence for Taiwan Lasiohelea

ActiveCN102690829AFacilitate the realization of molecular identificationShorten identification timeMicrobiological testing/measurementFermentationRapid identificationLasiohelea

Owner:FUJIAN INT TRAVEL HEALTH CARE CENT

Blood pressure lowering health care product and preparation method thereof

InactiveCN108272966AEfficient extractionImprove extraction efficiencyGranular deliveryCardiovascular disorderPalpitationsFlos chrysanthemi

Owner:HONG KONG JOWA & HUAYUAN GRP CHUZHOU PHARMA CO LTD

Device and method for continuous smelting of high-purity high-conductivity copper

InactiveCN102564131AGuaranteed stabilityReduce oxygen contentFurnace typesGraphiteOxygen content

Owner:浙江力博实业股份有限公司

Wireless system with wired fault self-restoring function and self-restoring method thereof

InactiveCN104980965AAvoid failureImprove satisfactionNetwork topologiesConnection managementRestoration methodThe Internet

Owner:成都飞鱼星科技股份有限公司

Display backlight brightness adjusting method and device

InactiveCN112509526ABacklight brightness adjustmentNo difference in brightnessStatic indicating devicesIlluminanceOphthalmology

Owner:BEIJING CO WHEELS TECH CO LTD

Slip-resistant waterproof heating bag

InactiveCN105639930ANot easy to slideMeet actual needsSynthetic resin layered productsHandbagsRubber materialMechanical engineering

Owner:JIANGYIN JIAYI GIFT

Dual-buffer mechanism based real-time system multi-task data sharing method

ActiveCN105912478AEnsure consistencyGuaranteed timelinessMemory systemsValue setRepeatability

Owner:CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST

Method and apparatus for providing calendar service

PendingCN112990842AVisual data miningStructured data browsingOutlierData mining

Owner:KAKAO CORP

Hydrological simulation method for averagely fusing multi-source data based on Bayesian mode

ActiveCN111898660AImprove the simulation effectEasy to operateCharacter and pattern recognitionMachine learningHydrometryData set

Owner:WUHAN UNIV

Coarse feed formula (2) for strongly fattening goats reared in captivity

InactiveCN102450468AAnimal feeding stuffGoadFodder

Owner:陈奉春

Remote-control fire-fighting truck

InactiveCN109331377AImprove the fire effectAvoid the problem of not being able to control the situation in the fieldLighting elementsFire rescueMicrocomputerMicrocontroller

Owner:芜湖一特滑移机械改装有限公司

Branch pulling method suitable for small independent pear shed only provided with forward stay wires during shed frame cultivation

InactiveCN109892142ANot easy to come outImprove the pulling effectClimate change adaptationGreenhouse cultivationPEARMain branch

Owner:POMOLOGY RES INST FUJIAN ACAD OF AGRI SCI

Liquid photosensitive corrosion-resistant printing ink and preparation method thereof

ActiveCN103666061AImprove toughnessEvenly dispersedPhotomechanical apparatusInksTripropylene glycolPhosphate

Owner:TONGLING FOUNDER PLASTICS TECH

Emulsifying viscosity reducer for thick oil as well as preparation method and application of emulsifying viscosity reducer

ActiveCN107033866AReduce manufacturing costGood viscosity reduction effectFluid removalDrilling compositionSodium bicarbonateAlkylphenol

Owner:CHINA PETROLEUM & CHEM CORP +1