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Invention by Another – How the Prior Art Status of a Reference Can Be Affected by the Significance of a Joint Inventor’s Contribution to that Reference

Invention by Another – How the Prior Art Status of a Reference Can Be Affected by the Significance of a Joint Inventor’s Contribution to that Reference

At times, a patent owner’s previous patent can be used as a prior art reference against their later filed patents. A reference is prior art under pre-AIA 35 U.S.C. 102(e) if it was “described in … an application for patent … by another.” A patent is “by another” if it lists a different set of inventors than the patent at issue. In other words, if a patent owner’s previously filed patent lists one inventor that is not listed on their later filed patent, the previously filed patent is “by another” and may qualify as prior art for the later filed patent. This issue was explored further in Duncan Parking Technologies, Inc., v. IPS Group Inc., (Appeal No. 2018-1205, Fed. Cir. Jan. 31., 2019), where the Federal Circuit overturned the PTAB’s finding that portions of the anticipatory reference used in an Inter Partes Review (IPR) proceeding were not by another and… Continue Reading

March 2019
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