The validity of a patent can be challenged in four different types of proceedings: ex parte reexamination, inter partes review, post grant review, and covered business method review. An ex parte reexamination is initiated by any person or by the PTO’s director to request that the PTO internally reexamine the claims of the patent based on prior art.

The other three proceedings were established by the America Invents Act. These proceedings are conducted by the Patent Trial and Appeal Board (PTAB) before a panel of three judges. The proceedings are adversarial;
Continue Reading Supreme Court: Federal Government Cannot Challenge Patents in PTAB

Shockingly, some at the Patent Trial and Appeal Board (“PTAB”) think textbook publishers who include dated copyright notices don’t actually publish the textbooks that year!  Further, would you have imagined an argument that textbooks aren’t printed publications?  Given the amount we paid for textbooks in college and the number stored in my garage that seems

Prior to the Leahy-Smith America Invents Act (“AIA”), the patent statute (35 U.S.C. § 102(b)) prohibited patenting an invention that was “on sale in this country, more than one year prior to the date of the application for patent in the United States.”  This limitation on patentability is often referred to as the “on-sale” bar