Josephine A. Brosas


  • location icon Los Angeles, CA
    633 West 5th Street
    Los Angeles, CA 90071

Josephine Brosas is a partner in the Los Angeles office of Lewis Brisbois and a member of the Intellectual Property & Technology Practice. Ms. Brosas is a registered patent attorney and focuses primarily on intellectual property and technology matters.

Her experience includes:

  • Representation of clients in Patent Infringement, Trademark Infringement, Copyright Infringement, Trade Secret Misappropriation, Franchising, Defamation, Right of Publicity and Privacy, False Advertising and Unfair Competition litigation
  • Development of Intellectual Property and Technology management, protection and enforcement programs and procedures.
  • Search, clearance and preparation and filing of patent and trademark applications.
  • Preparation of patent non-infringement/infringement opinions.
  • Due diligence investigations.

Legal Experience

  • Methods Development and Validation Scientist, Alpha Therapeutic Corporation/Grifols USA, Los Angeles, CA
  • Legal Extern, California Division of Occupational Safety and Health


Representative Cases

  • Represented an eyewear company in a patent infringement trial and obtained a multi-million dollar jury verdict, successfully opposed various post-trial motions and obtained attorney’s fees
  • Negotiated a favorable settlement agreement on behalf of a major shoe company involving Adidas’ three-stripe mark
  • Defended a major shoe company in a patent infringement suit in the Eastern District of Texas involving external shoe spring patents, which culminated in an exceedingly favorable settlement
  • Represented a biotechnology company specializing in PCR (Polymerase Chain Reaction) technology which involved complex patent licensing and jurisdictional issues
  • Obtained over $34k in sanctions against opposing counsel in a highly contentious discovery dispute in a case involving purchase of a website and related intellectual property
  • Prosecuted several patent applications on chemicals, fiberglass compositions and mechanical devices such as shoe components and oil drilling tools and elements
  • Conducted IP due diligence in a multi-million dollar acquisition of a digital cinema solutions provider with the largest installed base of digital cinema servers in the Asia-Pacific region and the second largest globally

Professional Presentations

  • Intellectual Property Management Strategies – Korean Trade Investment Promotion Agency (KOTRA), Omni Hotel, Los Angeles, CA, December 2014
  • Trademark Clearance and Prosecution, San Fernando Valley Legal Secretaries Association, Los Angeles, CA, November 2013



United States Patent and Trademark Office (USPTO)


  • Board of Governors, Philippine American Bar Association (PABA)
  • Member, Los Angeles Intellectual Property Association (LAIPLA)
  • Member, International Trademark Association (INTA)

Awards & Honors

Southern California Super Lawyers “Rising Star” by Thomson Reuters and the publishers of Los Angeles Magazine


Southwestern University School of Law

Juris Doctor, magna cum laude, 2005

  • Recipient, CALI Excellence for the Future Awards: Copyright Law, Advanced Copyright Law, Patent Law, Immigration Law, Community Property
  • Recipient, Exceptional Achievement Award, Patent Application Drafting
  • Named, Dean’s List, 2003-2005
  • Recipient, Dean’s Merit Award, 2003-2005
  • Top 10% of graduating class

University of California, Los Angeles

Bachelor of Science in Biochemistry, magna cum laude, 1999

  • Provost’s Honor List and Chemistry and Biochemistry Departmental Honors

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