Winthrop & Weinstine successfully defended two Inter Partes Review (IPR) petitions by convincing the Patent Trial and Appeal Board to deny petitions to institute IPR proceedings against our client’s patents, relating to shopping cart mover technology. As of October 1, 2013, the Patent Trial and Appeal Board had only denied petitions to institute inter partes review in about 12% of its decisions. This major success at the patent office has allowed our client to quickly and completely avoid the potentially invalidating or weakening effects IPR proceedings can have on U.S. patents and, as such, has significantly strengthened the client’s patent validity position in the associated litigation.

Inter Partes Review is one of several post-grant proceedings that takes place before the United States Patent and Trademark Office and was implemented by the America Invents Act.