What types of evidence can be used to establish assignee ownership in pre-AIA applications?

What types of evidence can be used to establish assignee ownership in pre-AIA applications? For pre-AIA applications (filed before September 16, 2012), assignees can use various types of evidence to establish ownership, including: Assignment documents Corporate merger documentation Patent purchase agreements Court orders Joint research agreements The MPEP 324 states: “The submission establishing ownership must…

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What evidence is required to prove an inventor’s refusal to sign a patent application?

What evidence is required to prove an inventor’s refusal to sign a patent application? When an inventor refuses to sign a patent application, specific evidence is required to proceed without their signature. The MPEP 409.03(d) outlines the necessary proof: ‘Where refusal of the inventor to sign the application papers is the reason for filing under…

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Is it possible to expunge assignment records at the USPTO?

Expungement of assignment records at the USPTO is extremely rare and does not result in the complete removal of a document from the assignment records. According to MPEP 323.01(d), petitions to expunge assignment records are granted only if the petitioner can prove: The normal corrective procedures outlined in MPEP § 323.01(a) through § 323.01(c) will…

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