Patents Post Grant Blog

… or is it?  Rumors of the demise of interferences via patent reform have been greatly exaggerated for years.  Whether S.515 will have a different fate than other recent patent reform bills is uncertain at best.  In any event, we continue our review of S.515 provisions related to post grant matters.  On March 4^th and 5^th, we outlined the provisions in S.515 which would change reexamination and implement a new Post-Grant Review revocation mechanism, respectively.  Today, we discuss what little of substantive interference practice[1] will remain if S.515 is enacted — namely, derivation proceedings.[2] 

Currently, derivation cases are a species or type of interference decided by the Board of Patent Appeals and Interferences (“BPAI”).  In an interference proceeding at the BPAI, derivation is proven by establishing prior conception of the interfering subject matter and communication of the conception to the opposing party. 

Examiners rarely, if ever, suggest an interference sua sponte.   Consequently, in the vast majority of cases, an applicant wishing to initiate a derivation proceeding is required to suggest an interference pursuant to 37 C.F.R. § 41.202.  The suggestion of an interference is initially considered by an examiner, who is instructed by the MPEP not to even consider the suggestion of interference until after he or she has decided that the targeting applicant’s claims are in condition for allowance, but for the existence of the targeted application or patent.  Therein, lies the rub.  As stated in MPEP Read the rest of this entry »