There is a very helpful listserv (email discussion group) for US patent practitioners. it is called the EFS-Web listserv, originally created to help US practitioners survive the problems in the initial launch by the USPTO of the EFS-Web system. The charter of the listserv has now broadened to encompass US patent prosecution practice generally. Here’s a question that one loyal listserv member posted today:
I just had a case transferred in that was filed with a PPH request in the US, based on a PCT written opinion. I haven’t used PPH before, so don’t have much experience.
There is a pending office action, in which the Examiner found some art in the US that wasn’t in the original search report, and I think our best way forward is to amend the claims.
PPH requests appear to require that all claim amendments be within the scope of the claims held allowable in the PCT application.
What’s the procedure if I am going to add a claim limitation that’s not in the original claim set?
Here’s what I answered. Continue reading “How broadly can you amend claims in a PPH case?”