Legal Opinion

Centrak, Inc. v. Sonitor Technologies, Inc.

Court of Appeals for the Federal Circuit

Decided February 14, 2019No. 2017-2510PublishedCited by 23 opinions

1Opinion of the Court

Chen, Circuit Judge.

CenTrak, Inc. sued Sonitor Technologies, Inc. for alleged infringement of U.S. Patent No. 8,604,909 ('909 patent), which claims systems for locating and identifying portable devices using ultrasonic base stations. The district court granted Sonitor's motions for summary judgment that claims 1, 7, 8, 16, 18, 21, 22, and 26 are invalid for lack of written description and that claims 1, 7, 8, 16, 18, 21, and 22 are not infringed. Because the district court erred in determining that there were no genuine disputes of material fact on both issues, we reverse and remand for…

2Cases cited18 opinions

  1. United States & Interstate Commerce Commission v. American Railway Express Co.Supreme Court of the United States · 1924
  2. Ariad Pharmaceuticals, Inc. v. Eli Lilly and Co.Court of Appeals for the Federal Circuit · 2010
  3. Lawrence B. Lockwood v. American Airlines, Inc.Court of Appeals for the Federal Circuit · 1997
  4. The Regents of the University of California v. Eli Lilly and CompanyCourt of Appeals for the Federal Circuit · 1997
  5. Cross Medical Products, Inc. v. Medtronic Sofamor Danek, Inc.Court of Appeals for the Federal Circuit · 2005

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3Cited by23 opinions

  1. Acceleration Bay LLC v. Take-Two Interactive SoftwareCourt of Appeals for the Federal Circuit · 2021
  2. Steffen v. United StatesCourt of Appeals for the Federal Circuit · 2021
  3. Mitek Systems, Inc. v. United Services Automobile AssociationCourt of Appeals for the Federal Circuit · 2025
  4. (PS)Huang v. Genesis Global Hardware, Inc.District Court, E.D. California · 2020
  5. Acceleration Bay LLC v. Take-Two Interactive Software, Inc.District Court, D. Delaware · 2020

18 more not listed; retrieve them via the Exa API.

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