What is joint ownership of a patent?

Joint ownership of a patent occurs when multiple parties together own the entire right, title, and interest of the patent property. This can happen in several scenarios: Multiple partial assignees of the patent property Multiple inventors who have not assigned their rights A combination of partial assignee(s) and inventor(s) who have not assigned their rights…

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What is the effect of recording a patent assignment?

Recording a patent assignment with the USPTO has specific legal effects. The MPEP states: ‘Recordation of the assignment provides legal notice to the public of the assignment.’ However, it’s important to note that: ‘It should be noted that recording of the assignment is merely a ministerial act; it is not an Office determination of the…

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What is an ‘assignment-statement’ and how is it used in patent applications?

An ‘assignment-statement’ is a relatively new concept in patent law, introduced for applications filed on or after September 16, 2012. The MPEP explains: ‘For applications filed under 35 U.S.C. 111(a), 363, or 385 on or after September 16, 2012, an assignment may contain the statements required to be made in an oath or declaration (‘assignment-statement’),…

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What is patent ownership according to 35 U.S.C. 261?

According to 35 U.S.C. 261, patents have the attributes of personal property and are assignable by an instrument in writing. Specifically, the statute states: ‘Subject to the provisions of this title, patents shall have the attributes of personal property. […] Applications for patent, patents, or any interest therein, shall be assignable in law by an…

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What is the difference between an assignment and a license in patent law?

The MPEP distinguishes between assignments and licenses in patent law: Assignment: ‘An assignment of a patent, or patent application, is the transfer to another of a party’s entire ownership interest or a percentage of that party’s ownership interest in the patent or application.’ License: ‘As compared to assignment of patent rights, the licensing of a…

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How are assignment records made accessible to the public?

The USPTO makes assignment records accessible to the public in several ways, as described in 37 CFR 1.12: Separate assignment records for patents and trademarks are maintained and are open to public inspection. Assignment records, digests, and indexes for patents are available on the USPTO website. Images of assignment documents recorded from June 1998 onwards…

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