SAN FRANCISCO — Fish & Richardson has married two hot sectors in the technology space: mobile apps and postgrant review before the Patent Trial and Appeal Board. Since opening for business in 2012, the PTAB has received more than 1,000 petitions for inter partes review and other challenges to patent validity. Fish Post-Grant­, an app available through iTunes and Google Play Store, is offering news and information about the process, such as all district court orders granting or denying stays of litigation pending inter partes review. We spoke with Fish & Richardson partner Karl Renner about Fish Post-Grant last week.

Q: Why is there so much activity in this area right now?