System art is of increasing importance in patent disputes despite being frequently overlooked or “left for later” in many cases.  A recent decision in the Ironburg Inventions v. Valve Corp. case highlights the importance of system prior art, particularly as IPR success rates have dropped from their high points in 2012-15.
Continue Reading Left Empty Handed: Valve Shut Down on Written Prior Art, Highlighting Importance of System Art

Last fall, the PTAB modified its procedures for IPR claim construction, eliminating the use of the broadest reasonable interpretation standard. Since the rule change last year, companies challenging the validity of patents at the PTAB are required to use the Phillips plain and ordinary meaning standard.
Continue Reading “Addressing Video Game Claims Under the Phillips Standard at the PTAB”