Rambus: Enforcing chip patents in Micron case a 'no-go'

U.S. District Judge Sue Robinson in Wilmington, Delaware, stated that the patents are unenforceable. It is a sanction against Rambus officials who destroyed documents designed to “gain a litigation advantage” in a patent-infringement lawsuit. Robinson made her ruling after an appeals court sent the case back for her consideration. The ruling comes after a California judge found in September that Rambus should be sanctioned for destroying documents in a patent case involving SK Hynix Inc.