How is “substantially the same subject matter” determined for pre-AIA 35 U.S.C. 135(b)?

Determining “substantially the same subject matter” for pre-AIA 35 U.S.C. 135(b) is crucial for interference proceedings. The MPEP provides guidance on this determination: “The obviousness test is not the standard for determining whether the subject matter is the same or substantially the same. Rather the determination turns on the presence or absence of a different…

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How does an applicant explain priority in an interference suggestion?

When suggesting an interference, an applicant must explain their priority position in detail. According to 37 CFR 41.202(a)(4), the suggestion must “Explain in detail why the applicant will prevail on priority.” This explanation can take different forms depending on the applicant’s priority position: If the applicant has an earlier constructive reduction-to-practice than the apparent earliest…

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What evidence can be used to show possession of a claimed invention for priority purposes?

The MPEP 2304.02(c) provides guidance on the types of evidence that can be used to show possession of a claimed invention for priority purposes: Written description: A detailed explanation of how the earlier application supports each claim element. Charts: Visual representations showing the correlation between claim elements and the earlier application’s disclosure. Additional evidence: This…

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What is a constructive reduction-to-practice in patent law?

A constructive reduction-to-practice in patent law refers to a description in a patent application that would have anticipated the subject matter of a count in an interference proceeding. According to MPEP 2304.02(c), “A description in an application that would have anticipated the subject matter of a count is called a constructive reduction-to-practice of the count.…

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