Liberty Mutual Achieves Total Knockout of Progressive Patents in Series of Post-Grant CBM Proceedings by Jonathan A. Auerbach, Eleanor M. Yost, and Stephen T. Schreiner (from FC&S Legal: The Insurance Coverage Law Information Center) A recent dispute involving major automobile insurance companies resulted in the invalidation of five patents through the initiation of post-grant covered business method patent review proceedings. The authors of this article believe the dispute demonstrates that the Patent Trial and Appeal Board (“PTAB”) provides a powerful alternative to district court litigation, and provides lessons in how the PTAB conducts such proceedings.