Patent licensing
Also called patent license, patent licence, licensing a patent, technology licensing, IP licensing, license agreement
Patent licensing is the practice of a patent owner (the licensor) giving another party (the licensee) permission to use the patented invention, while the owner keeps ownership of the patent. WIPO describes a license in these terms for IP rights generally, and says it is a consent by the owner to the use of IP in exchange for money or something else of value1,2.
The permission is usually granted through a written contract, called a license agreement, in which the purpose, territory and period of time are defined and agreed by the parties2. For licensing patents that are essential to a standard, see FRAND. For licensing patents from several owners as one package, see Patent pool.
What a patent license grants
WIPO's licensing guide lists the rights a licensee may need, and says a license can be shaped to give some of them and not others1:
- to use the technology, for research and product development1;
- to make it or have it made, for manufacture by the licensee or a contractor1;
- to distribute or sell it1;
- to import it1;
- and to sub-license it to another party who can do any or all of the above1.
WIPO notes that these are sometimes referred to as patent grants (make, use or sell). It also says a license may cover only part of a single IP right, for example the right to make a product covered by a patent but not the right to have it made by others1.
A license can also be limited in other ways. WIPO's IP Panorama module says the license may be limited to a particular geographic territory, and the licensee may be limited to a field of use, such as a class of customers or a specific industry segment2. WIPO's guide adds that limiting the license grant to the patents of certain countries does not limit the territory in which the license may be exploited, so if the licensee is to be limited to a specific territory, this should be specified1. WIPO notes that IP rights are often territorial1. See Patent family for how one invention can be protected in several countries.
Exclusive, sole and non-exclusive licenses
WIPO says a license could be exclusive, sole or non-exclusive2. The EU Technology Transfer Guidelines define the first two for the purposes of those Guidelines, which apply EU competition law, so the table gives the EU definitions and WIPO's practical comments4.
| Type | What it means | What WIPO says |
|---|---|---|
| Exclusive | The licensor itself is not permitted to produce using the licensed technology rights, nor to license those rights to third parties, in general or for a particular use or territory. The licensee is the only party authorized to produce on that basis for the use or territory concerned4. | From the licensor's point of view an exclusive license is generally not desirable, because it restricts the licensor's freedom to do business with other licensees. Exclusive licenses are often considered where the licensee must make a substantial investment that cannot be used for a different purpose1. |
| Sole | The licensor undertakes not to license third parties to produce within a given territory, but keeps the right to produce using the licensed technology itself4. | WIPO names sole licenses as a category alongside exclusive and non-exclusive ones2. |
| Non-exclusive | The licensee is one of several licensees with whom the licensor has entered into agreements for the use and exploitation of the technology2. | WIPO calls it the preferred option of most licensors, because spreading risks and rewards means the licensor does not depend on the success of one licensee2. |
WIPO's guide lists ways to limit the downsides of an exclusive license. Exclusivity may depend on the licensee reaching minimum royalty payments or product sales, may last for a shorter period than the agreement (a head start provision), or may apply only within a specified field of use1. It also warns that exclusive licenses may be illegal, or subject to legal scrutiny, in some countries1.
In the EU, the Guidelines treat reciprocal exclusive licensing between competitors as a form of market and customer sharing and a hardcore restriction under Article 4(1)(c) of the Technology Transfer Block Exemption Regulation (TTBER)4.
Royalties and other payments
WIPO's guide says two types of payment are common in technology licensing: royalties and lump sum payments, which can be combined in different ways1. The IP Panorama module says royalties are regular payments to the licensor that reflect the licensee's use of the technology, and that they are the most usual type of payment in license agreements2.
| Payment term | How WIPO describes it |
|---|---|
| Per unit royalty | The licensee pays a set amount for each unit of product sold1. |
| Percentage royalty | A percentage of revenues from products sold or sub-licensed that incorporate the licensed technology. WIPO says to define how net prices or revenues are determined and to specify exactly how the royalty is calculated1. |
| Cap and minimum | A cap limits the royalties the licensee must pay, which the licensor does not like because it limits the upside. The opposite is a minimum royalty, which limits the licensor's downside and is often used when the license is exclusive1. |
| Lump sum | May be used instead of, or in addition to, royalties. It may be paid at the beginning of an agreement or later, in installments, and may be an advance against royalties1. |
| Cross license | Neither party pays the other for the license rights. Both exchange license grants of approximately equal value, or exchange covenants not to sue1. |
Several patents can affect a single product. WIPO calls the resulting risk royalty stacking: when royalty payments to all patent owners are added together, the licensee may find itself with a non-profitable product, so licensees often insist on anti-stacking provisions that reduce the royalty rate if the licensee must take licenses from third parties2. This page does not give royalty rates, because the sources describe how rates are structured and negotiated, not a standard figure. See Patent valuation for how patent value is estimated.
Licensing vs assignment
| Point | License | Assignment |
|---|---|---|
| Ownership | The licensor continues to own the IP rights and only gives the licensee permission to use a defined right2. | Ownership of the rights moves from the assignor (seller) to the assignee (buyer)2. |
| Nature of the deal | Usually a written license agreement defining purpose, territory and period of time2. | A one-time transaction for an agreed price2. |
| United States | The MPEP states that a license is not an assignment, even if it is exclusive5. Courts look at substance: whether a transfer is an assignment or a license does not depend on the name by which it calls itself, but on the legal effect of its provisions (Waterman v. Mackenzie, 138 U.S. 252 (1891))6. | Applications for patent, patents, or any interest therein are assignable in law by an instrument in writing (35 U.S.C. 261)3. |
In the United States, 35 U.S.C. 261 also provides that an interest that constitutes an assignment, grant or conveyance is void as against a subsequent purchaser or mortgagee for a valuable consideration, without notice, unless it is recorded in the Patent and Trademark Office within three months from its date or prior to the date of the subsequent purchase or mortgage3. WIPO adds that the distinction between a license and an assignment is also important for determining who may sue for infringement and for taxation2.
Why owners license
WIPO's IP Panorama module lists business situations in which a business would consider licensing. Among them2:
- Cross-licensing: in closely related industries where rivals use very similar technologies, cross-licensing is relied on to avoid expensive tit-for-tat litigation2.
- Infringement: where IP rights are being infringed, the owner may put pressure on the infringer to take a license, for example by threatening to litigate. See Patent infringement2.
- Patent pools: where several patent holders own patents relevant to a product, they may license the patents as a group. See Patent pool2.
- Standards: where a license is needed to meet an industry standard, it is generally available either royalty-free or on fair, reasonable and non-discriminatory (RAND or FRAND) terms. See FRAND2.
WIPO's guide also says that even aggressive assertions of IP against competitors, in most cases, end with a settlement in which the IP is licensed to the competitors1.
Questions people ask
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Run FTO SearchWhat is the difference between licensing and selling a patent?
In a license the owner keeps ownership and gives the licensee permission to use a defined right. In an assignment ownership moves from the seller to the buyer in a one-time transaction for an agreed price2. In the United States, patents are assignable in law by an instrument in writing (35 U.S.C. 261)3.
Does an exclusive license mean the patent owner can no longer use the invention?
It depends on the terms. Under the EU Technology Transfer Guidelines, an exclusive license means the licensor is not permitted to produce using the licensed rights or license them to third parties for the use or territory concerned, whereas under a sole license the licensor keeps the right to produce itself4. WIPO notes that exclusivity can be limited, for example to a field of use or a shorter period1. The agreement and the applicable law decide.
How is a patent license paid for?
Commonly through royalties, lump sum payments, or both. Royalties may be a set amount per unit sold or a percentage of revenues, and lump sums may be paid up front or in installments1,2. WIPO also describes cross licenses, in which neither party pays the other and both exchange license grants of approximately equal value1.
Can a patent license be limited to one country or one field?
Yes. WIPO's IP Panorama module says a license may be limited to a particular geographic territory or to a field of use2. WIPO's guide says a license may cover only part of a single IP right, and that if the licensee is to be limited to a specific territory, this should be specified in the agreement1.
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