SpeedTrack, Inc. v. Office Depot, Inc., No. 14-1475 (Fed. Cir. 2015)
Annotate this CaseSpeedTrack’s patent, entitled “Method for Accessing Computer Files and Data, Using Linked Categories Assigned to Each Data File Record on Entry of the Data File Record,” describes methods for searching and accessing files stored on a computer system. The claimed methods require use of: “category descriptions,” corresponding to stored files; a “file information directory” containing information linking “category descriptions” to specific system files; and a “search filter,” to locate files that have “category descriptions” matching those in the filter. SpeedTrack sued, alleging that Walmart’s online retail website infringed the patent by permitting visitors to search for available products by selecting pre-defined descriptive categories. Walmart licensed and used Endeca’s software to achieve this functionality. After reexamination by the PTO, the district court granted summary judgment of noninfringement , finding that, because the accused Endeca software uses numerical identifiers instead of descriptive words, users did not use “category descriptions” required by the patent. The Federal Circuit affirmed the claim construction. Speedtrack later sued Office Depot. The Federal Circuit affirmed judgment as a matter of law, finding that SpeedTrack’s claims were barred by res judicata and under the “Kessler doctrine,” which bars suits against customers for use of a product previously found not to infringe in a suit against the product’s supplier.
Some case metadata and case summaries were written with the help of AI, which can produce inaccuracies. You should read the full case before relying on it for legal research purposes.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.