Wilson Sonsini Goodrich & Rosati is pleased to present our 2017 PTAB Year in Review. We begin our report with a review of 2017 petition filings at the Patent Trial and Appeal Board (PTAB), which continues to be one of the busiest jurisdictions in the U.S. for patentability challenges. We then look more closely at the results of these challenges, examining trends in institution rates and final written decisions.