United States Federal Circuit

In an infringement action involving patents that relate to improvements in computer hard drives, in a second appeal after initial remand, which reversed the district court's grant of summary judgment ruling that no accused products met the patent's 'selected unwanted frequencies' limitation, the district court's second grant of summary judgment on alternate grounds is: 1) affirmed-in-part where the Seagate's disk drives do not possess a user interface; and 2) vacated-in-part, reversed-in-part and remand for further proceedings where the district court erred by importing limitations into the "command" steps and in granting summary judgment based on intervening rights.

Appellate Information

• Published 2016/02/10

Judges

• HUGHES

Court

• United States Federal Circuit

Counsel