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Senior Counsel
Los Angeles
T: 310-203-7927
F: 310-203-7199
bledahl@irell.com

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Practice Areas

Education

  • Columbia Law School (J.D., 1996); Harlan Fiske Stone Scholar, Managing Editor of the Columbia Journal of Law and Social Problems, Finalist in the Columbia Law School Mock Jury Trial Competition
  • Columbia College (B.A., International Relations, 1993), magna cum laude; Dean’s List, Eisenhower Scholar Athlete Award; Member 1992 and 1993 NCAA Champion Varsity Fencing Team.

Brian D. Ledahl

Mr. Ledahl specializes in handling complex civil litigation matters, with a focus on intellectual property litigation, including patent 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 technology, and construction technology in litigation matters. Mr. Ledahl has also represented clients in significant 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:

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