The Alberti Lim team secured a significant and strategic win for its client, Polaris PowerLED Technologies, LLC, prevailing in an important claim construction hearing against defendants Microsoft and Dell Technologies. Polaris ran the table, with the court adopting Polaris’ proposed claim construction as to the ten patent claim terms construed, and turning away all arguments advanced by defendants. With this victory, the case will proceed towards trial this coming year. Microsoft and Dell are represented by Covington Burling LLP’s New York and Washington, D.C. offices.

Polaris filed this important patent infringement case in the U.S. District Court for the Western District of Texas, captioned Polaris v. Microsoft and Dell Technologies, Case No. 1:22-cv-00973-RP in Austin, Texas. The case accuses Microsoft Windows and mostly all Dell notebook computers of infringing Polaris’ pioneering auto brightness patent, U.S. Patent No. 8,223,117 entitled “Method and Apparatus to Control Display Brightness With Ambient Light Correction.”

On February 26, 2025, United States Magistrate Judge Dustin M. Howell conducted a claim construction hearing in a federal courtroom in Austin that was argued by Alberti Lim partners Russell Tonkovich, and Aidan Brewster. On March 4, 2025, the Court issued its ruling, siding with Polaris and adopting its proposed constructions on all ten patent claim terms, while rejecting all of the defendants’ constructions and arguments.

This follows on the significant victory last year that Alberti Lim secured for Polaris, defeating Microsoft’s ex parte reexam challenge to the validity of Polaris’ ’117 patent. In that decision, the Patent Office upheld the validity of all challenged claims, rejecting Microsoft’s arguments.  Polaris’ ’117 patent also was upheld as valid in 4 prior IPR proceedings conducted by the PTAB in the U.S. Patent Office. Polaris previously litigated the ’117 patent against Samsung in a Texas courtroom resulting in a settlement with Samsung taking a license to the patent.

About Alberti Lim & Tonkovich LLP

Founded in 2010 and based in Silicon Valley with attorneys in New York, Washington, D.C., and Austin, Texas, Alberti Lim has risen to become a highly sought-after patent litigation firm representing patent owners in large complex cases. With a team of 20 technically trained and experienced patent litigation trial attorneys representing an unrivaled assembly of specialized expertise, Alberti Lim is positioned as a firm of choice for plaintiffs seeking large recoveries in patent monetization and clients in need of objective-based IP solutions.

For more on Alberti Lim please visit www.albertilim.com

David Alberti | 650.825.4300