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What is patent assignment?

15-Jan-2026
Patent

Answer By law4u team

A patent is a form of intellectual property that gives its owner the exclusive right to make, use, sell, or license an invention for a specific period. However, the rights associated with a patent are transferable. Patent assignment refers to the legal process by which the ownership of a patent or patent application is transferred from one party (the assignor) to another (the assignee). Unlike licensing, which only permits use of the patent, assignment transfers full ownership. 1. Nature of Patent Assignment Patent assignment is essentially a contract between two parties: The assignor, who is the original owner of the patent, agrees to transfer their rights. The assignee, who receives the patent rights, becomes the new owner with all associated privileges and obligations. Once a patent is assigned, the assignee can enforce the patent, sue for infringement, or license it to others. The assignor loses all proprietary rights over the patent unless specifically retained in the assignment agreement. 2. Legal Framework In India, the process of patent assignment is governed by the Patents Act, 1970 and the rules under it. While the act defines patent ownership, it allows for voluntary transfer of rights through a written agreement. Key legal points include: Assignment can cover a whole patent, a particular right, or rights in a geographical region. The assignment must be in writing and signed by the parties to be valid. For public record and enforceability against third parties, the assignment must be recorded with the Patent Office. 3. Types of Patent Assignment 1. Absolute Assignment: Transfers full ownership of the patent from the assignor to the assignee. After the transfer, the assignor has no remaining rights. 2. Partial Assignment: Transfers only specific rights, such as manufacturing or selling the invention in a defined region. The assignor retains other rights not mentioned in the assignment. 3. Future Assignment: An agreement where the assignor agrees to transfer patent rights that they may obtain in the future. Often used when an invention is still under development or a patent application is pending. 4. Procedure for Patent Assignment The typical steps involved are: 1. Drafting the Assignment Agreement: The agreement specifies the rights being transferred, compensation, scope, and duration if partial. 2. Execution of the Agreement: Both parties sign the agreement. Witnesses or notarization may be required depending on jurisdiction. 3. Recording with the Patent Office: To protect the rights of the assignee against third parties, the assignment must be recorded with the Indian Patent Office. 4. Effectiveness: Once recorded, the assignee is recognized as the legal owner of the patent. 5. Key Considerations Compensation: The assignor is usually compensated as per the terms of the agreement, either as a lump sum or through royalties. Scope: The assignment should clearly define whether it is full, partial, or limited to specific jurisdictions. Warranties: The assignor typically warrants that they are the true owner of the patent and that it is free from encumbrances. Third-Party Rights: Recording the assignment protects the assignee from claims by third parties. 6. Difference Between Assignment and Licensing Assignment transfers ownership completely. The assignee becomes the new patent holder. Licensing only allows the licensee to use the patent while ownership remains with the licensor. Licensing can be exclusive or non-exclusive, but the underlying ownership is not affected. 7. Importance of Patent Assignment Patent assignment plays a crucial role in business and innovation: It enables companies to acquire strategic technologies. Facilitates commercialization and investment in inventions. Provides legal clarity and enforceability for the assignee. Helps in mergers, acquisitions, and transfer of intellectual property assets.

Answer By Anik

Dear client, as per your query, the Patents Act does not define the term for assignment. However, a patent is an assignment which refers to the transfer of all or part of a patent holder’s rights from the assignor to the assignee. Once it is assigned, the assignee can enforce the patent against that of the unauthorized use. There are three types of patent assignments, which is: - Equitable Assignment: Under this type of assignment, the inventor agrees, usually through an agreement or letter, to share a portion of the patent rights. The assignee cannot be recorded as an owner but also may notify the patent register of their interest. - Legal Assignment: Under this kind,the assignee is formally recorded as the patent owner through a written and also executed deed. This transfers the full patent rights to that of the assignee. - Mortgage: The patent owner in this type transfers full or partial rights as a security for money. Once it is repaid, the rights revert back to the owner. The lender is registered only as a mortgagee, and not as the proprietor. Under Section 70 of the Patents Act, the patent proprietor (assignor) may also assign or license the patent to another person (assignee), provided that the transfer is in writing and duly executed. Assignor: He is the patent owner Assignee: He is the person receiving the rights Further, under Section 50(3) of the Patents Act, 1970 states that, when a patent is jointly owned, no co-owner may transfer their share without the consent of all the other co-owners. I hope this answer was helpful. Incase of any other queries please do not hesitate to contact us. Thank You.

Answer By Ayantika Mondal

Dear client, Patent assignment is the legal transfer of ownership of a patent or patent application by the patentee (assignor) to another person or entity (assignee), either wholly or partially. In India, patent assignment is governed by Section 68 of the Patents Act, 1970, which mandates that such assignment must be in writing and duly executed. Upon execution, the assignee acquires the rights, title, and interest in the patent to the extent assigned, subject to recordal with the Patent Office for legal enforceability. I hope this answer was helpful. For further queries, please do not hesitate to contact us. Thank you.

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