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

Mr. Ledahl's litigation practice has included representation of high-technology clients from diverse industries, including aviation, biotechnology, communications, and electronics in litigation matters. Mr. Ledahl has also represented clients in significant copyright, securities and business disputes, and is experienced at all stages of complex litigation from initiation through trial and appeal.

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.

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

Pharmaceutical Industry Average Wholesale Price Litigation, representing generic drug maker Ivax Corporation in defense of suits in numerous jurisdictions relating to pharmaceutical pricing and Medicaid reimbursement.

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.

Irvine Ranch Water District v. Merrill Lynch, representing the water district in a securities-related matter arising out of the Orange County, California bankruptcy.

Bar & Court Admissions

• 1996, California
• 1997, Ninth Circuit
• 2007, Federal Circuit