In July 2025, Kramer LLP attorneys notched another PTAB clean sweep victory — this time for Polaris PowerLED Technologies, LLC (“Polaris”) — winning denial of institution of all three inter partes review petitions (“IPRs”) filed by Western Digital Technologies, Inc. and Sandisk Technologies Inc. The decisions before the Patent Trial and Appeal Board defeated each challenge to the validity of Polaris’s patents.

The three-for-three result underscored Kramer LLP’s team’s record of success defending the patents of inventors and patent owners against challenges brought by some of the world’s largest companies. The clean sweep reflected the firm’s strategic approach to inter partes review proceedings and its commitment to securing results for clients enforcing their patent rights.

About Kramer LLP Kramer LLP is an intellectual property litigation firm, delivering elevated patent litigation solutions for inventors and patent owners. The firm’s team of more than 20 attorneys and technical professionals blends talent, intelligence, strategy, and expertise to secure results for clients enforcing their patents against the world’s largest infringers. Comprised of proven litigators, bold thinkers, and innovative strategists, Kramer LLP operates from offices in Silicon Valley, New York, Austin, Boston, and Washington, D.C. To learn more, visit kramerllp.com