Patent Bar Mpep Q & A Podcast

Question: When do members of a Markush group share a ‘single structural similarity’? Answer: Members of a Markush group share a “single structural similarity” when they belong to the same recognized physical or chemical class or to the same art-recognized class (prong 1) and the members of a Markush group share a common function or use when they are disclosed in the specification or known in the art to be functionally equivalent (prong 2). Chapter Details: The answer to this question can be found in chapter 2100 of the MPEP. This chapter covers Patentability. The answer is from the 9th… The post MPEP Q & A 255: When do members of a Markush group share a ‘single structural similarity’? appeared first on Patent Education Series.