What is the effect of recording an assignment at the USPTO?

Recording an assignment at the USPTO does not determine its validity or effect on title. As stated in 37 CFR 3.54:

“The recording of a document pursuant to § 3.11 is not a determination by the Office of the validity of the document or the effect that document has on the title to an application, a patent, or a registration.”

The USPTO may, when necessary, determine the effect of a document and whether a party has authority to take action in matters pending before the Office.

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Topics: MPEP 300 - Ownership and Assignment, Patent Law, Patent Procedure
Tags: patent assignment, USPTO