Tag Archives | ex parte PTAB

PTAB Panel Can’t Agree on Patent-Eligibility

Lest anyone think that patent-eligibility determinations at the USPTO’s Patent Trial and Appeals Board (PTAB) are easy, even in appeals in ex parte patent prosecution, consider the recent case of Ex parte Plondke, Appeal 2016-006905, Application 13/241,673 (PTAB April 3, 2017).  The claims at issue were directed to data processing software patents, specifically to an […]

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Arguments of Impermissible Change in the Principle of Operation in Ex Parte PTAB Decisions

In roughly the last month, the PTAB has decided 41 ex parte appeals involving arguments that the proposed modification in an obviousness rejection impermissibly changes the principle of operation of the primary reference. By way of background, this type of argument, including caselaw, is outlined in MPEP §2143.01 IV. Of the 41 recent decisions, only […]

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