Litigation Services from Law Offices of Charles Rosenberg

Charles will be your advocate. He has aggressively and successfully represented clients in civil and complex business litigation matters. He is skilled in contract, copyright, patent, trademark, and trade secret law.

Charles recently obtained a very favorable settlement for a European company that manufactures cutting edge proton beam therapy systems for use in eradicating specific types of cancerous tumors in the course of patent infringement litigation involving five medical device and software patents, violation of the Lanham Act and unfair competition that had been pending for over five years.  

Charles was instrumental in invalidating two of the five patents on summary judgment and successfully defended that outcome in the United States Court of Appeals for the Federal Circuit.

The appellate decision is published at: Optivus Technology, Inc. v. Ion Beam Applications, S.A., 469 F.3d 978 (Fed. Cir. 2006). The case settled just before trial on the remaining issues. The settlement amount represented approximately one-half of one percent of the amount originally demanded in the plaintiff's complaint.



Charles defended a software supplier in a complicated trade secret and copyright infringement case involving medical software, in addition to defending the world's largest automobile manufacturer in patent infringement litigation involving web site design and functionality.

He defended one of the world's leading consumer electronics manufacturers in patent infringement litigation involving plasma screen displays. The case involved claims and counterclaims covering 16 patents and was settled favorably following an intensive discovery and claims construction battle. He also defended a software developer by successfully defeating a breach of contract and tort action relating to custom software on a venue requirement.

As part of Charles’ litigation practice, he has the skills to protect your business. He will represent you in securing copyrights and trademarks before governmental agencies. He is also skilled in asserting your rights in copyright, patent and trademark law. Charles has the expertise to assist you in technology acquisitions, due diligence investigations and negotiating technology transfer agreements.

Law Offices of Charles Rosenberg:
11500 Olympic Blvd. Suite 400 Los Angeles, California 90064     Phone: (310) 391-5839   Email:

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