Mr. Ledahl specializes in handling complex civil litigation matters, with a focus on intellectual property litigation, including copyright, patent, and trademark infringement, and  trade secret misappropriation, as well as other business litigation.

Mr. Ledahl's litigation practice primarily involves representation of clients in the entertainment and technology sectors, including clients in the music, television, aviation, biotechnology, communications, and electronics industries.  Mr. Ledahl is experienced at all stages of complex litigation, has tried multiple cases and handled various appellate matters.

Mr. Ledahl regularly speaks on intellectual property matters.  Some recent engagements include presentations on copyright law to the 2009 annual meeting of the American Intellectual Property Law Association, and to a joint American Law Institute-American Bar Association Conference on Entertainment, Art and Sports Law, and a presentation on patent law issues at the 2007 Seattle Technology Law Conference.

Representative Matters

Representative litigation matters in which Mr. Ledahl has served as counsel include:

UMG Recordings, Inc., et al. v. MySpace, Inc., et al.; v. Grouper Networks, Inc., et al.; v. Bolt, Inc.; and v. Veoh Networks, Inc., et al., representing music recording and publishing companies from the Universal Music Group in copyright infringement litigation against on-line video-sharing web sites.

HLC Properties, Ltd., et al. v. UMG Recordings, Inc., et al., representing UMG Recordings in a series of royalties disputes with the heirs of the late Bing Crosby.

TI Beverage Group, Ltd. v. Home Box Office, Inc., et al., representing Home Box Office in a trademark action relating to products associated with the popular series "True Blood."

Microprocessor Enhancement Corporation v. Texas Instruments Incorporated, representing Texas Instruments in a patent infringement suit relating to digital signal processor products.

Northrop Grumman Space & Mission Systems Corp. v. Space Exploration Technologies Corp., representing Space Exploration Technologies in a trade secret dispute relating to rocket propulsion as well as in related antitrust claims against Northrop Grumman.

Townshend Intellectual Property v. Cisco Systems, representing Cisco Systems in a patent infringement matter relating to modem standards.

Ultimax Cement Manufacturing Corp. v. CTS Cement Manufacturing Corp., representing CTS Cement in a patent infringement matter involving the chemistry of rapid hardening specialty cement products.

Oklahoma Medical Research Foundation v. Eli Lilly and Co., representing Eli Lilly in a patent infringement matter relating to a recombinant-protein-based new medication for severe sepsis.

Affymetrix v. Incyte Genomics; Affymetrix v. Hyseq; Hyseq v. Affymetrix; and Incyte Genomics v. Affymetrix, representing Affymetrix as both plaintiff and defendant in a series of patent infringement matters relating to genetic analysis technology.

Stanford Telecommunications v. Broadcom, representing Broadcom in a patent infringement matter relating to cable modem technology. 

Bar & Court Admissions

• 1996, California
• U.S. Court of Appeals, Ninth Circuit
• U.S. Court of Appeals, Federal Circuit