What is prima facie evidence of “by another” in pre-AIA 35 U.S.C. 102(e) rejections?

A different inventive entity is considered prima facie evidence that a reference is “by another” for pre-AIA 35 U.S.C. 102(e) rejections. The MPEP states in MPEP 2136.04: “Therefore, a U.S. patent, a U.S. patent application publication or international application publication, by a different inventive entity, whether or not the application shares some inventors in common…

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What is the “one-way rule” for determining inventorship differences?

The “one-way rule” is a key concept in determining inventorship differences for prior art purposes. According to MPEP 2136.04: “The ‘one-way rule’ is that the inventorship of an application-publication having at least one inventor in common with the patent is different than the inventorship of the patent if the application-publication names at least one inventor…

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What is the significance of inventorship in continuation-in-part applications?

Inventorship in continuation-in-part (CIP) applications has unique implications for prior art determination. The MPEP 2136.04 states: “If the application is a continuation-in-part of, or claims the benefit of the filing date of, a parent application naming A as the inventor, and the parent application was filed by A with a claim that was originally invented…

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How does a continuation-in-part application affect the “by another” determination under pre-AIA 35 U.S.C. 102(e)?

A continuation-in-part (CIP) application with an additional inventor can still be considered “by another” under pre-AIA 35 U.S.C. 102(e). The MPEP provides an example in MPEP 2136.04: “Ex parte DesOrmeaux, 25 USPQ2d 2040 (Bd. Pat. App. & Inter. 1992) (The examiner made a pre-AIA 35 U.S.C. 102(e) rejection based on an issued U.S. patent to…

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