9043131

Metrom Rail asserted the '227 patent and four related patents against Siemens Mobility, Thales entities, Humatics, and Piper Networks. The court granted in part and denied in part motions to dismiss, severed the case into defendant groups, and closed the Delaware action; severed patent claims continued in the Southern District of New York.

Patent infringement action in D. Del. against Ground Transportation Systems USA (later Hitachi Rail GTS USA) and Piper Networks. The narrative could not confirm a disposition; related '131 litigation substantially migrated to S.D.N.Y.

Patent infringement action against MBTA and Piper Networks concerning Piper's Rail Positioning System, ATP-O, and GLTPS. The court granted Piper's motion to dismiss or transfer for improper venue under TC Heartland, granted MBTA's motion to sever and stay, denied Metrom's motions for preliminary injunction and expedited discovery without prejudice, and denied MBTA's motion to dismiss with leave to renew. The case as to Piper was transferred to S.D.N.Y.

Inter partes review of U.S. 9,043,131. The Board instituted on all challenged claims 1-20 and found claims 1-16 unpatentable as obvious, while claims 17-20 were not shown unpatentable. This proceeding was appealed and addressed in Federal Circuit Case No. 24-2223.