Domingo Manuel LLagostera


Domingo M. LLagostera concentrates his practice on procuring, protecting, and enforcing intellectual property rights, with a primary focus on patent and trade secret litigation and business counseling. Throughout his career, Domingo has represented a diverse group of clients in numerous technology industries, including oil and gas, software, telecommunications, biotechnologies, and medical devices. 

Understanding that each client has unique business concerns, Domingo’s objective is to develop and carry out tailored and cost-effective intellectual property strategies.

Intellectual Property Litigation

Domingo has represented clients through all phases of patent and trade secret litigation in federal court, including:

  • case strategy and management
  • strategic patent reexamination (including inter partes review)
  • discovery, including depositions and motions practice
  • infringement and invalidity contentions
  • claim construction
  • expert depositions and reports
  • trial and arbitration

Intellectual Property Counseling and Transactions

Domingo is also active in a wide range of intellectual property investigative and transactional work, including: 

  • general business counseling
  • freedom-to-operate opinions
  • patent landscape analyses
  • patent infringement/invalidity opinions
  • investigations in anticipation of litigation
  • pre-suit settlement negotiations
  • licenses and assignments
  • diligence in mergers/acquisitions

Patent Prosecution

Domingo also prosecutes domestic and foreign patent applications in a wide range of technology fields, including software, oil and gas, biotechnology, and semiconductors.

Domingo frequently writes on intellectual property matters and cases in leading industry publications, and has also been published on the topic of immigration reform.


  • A company, in patent infringement actions filed against multiple large businesses in data storage technologies. (W.D. Tex.)
  • A company, against claims of infringement for patents involving data storage technologies. (N.D. Cal.)
  • A medical device company, defending against claims of infringement for patents involving medical lasers. (C.D. Cal.)
  • A software company, defending against claims of infringement for patents involving optical disk technologies. (S.D. N.Y.)
  • A medical device company, in defeating patent infringement claims; the panel rendered a decision of non-infringement. (Colorado Arbitration)
  • A local university, in defeating a claim of inventorship; the trial court granted a motion to dismiss based on laches and equitable estoppel. (S.D. Tex.)
  • An oil and gas company, in a patent infringement litigation; obtained a favorable settlement prior to trial. (E.D. Tex.)
  • An oil and gas company, in a patent infringement litigation through trial; the trial court dismissed the case with prejudice following a jury verdict in light of attorney misconduct. (S.D. Tex.)
  • Somali refugees, in war crimes action against a Somali general; the trial court entered a $20 million verdict against the general. (E.D. Va.)



  • Houston Bar Association
  • Houston Intellectual Property Law Association



  • U.S. District Court - Northern District of Texas
  • Texas
  • U.S. District Court - Eastern District of Texas
  • U.S. District Court - Southern District of Texas
  • U.S. District Court - Western District of Texas
  • U.S. Patent and Trademark Office


  • Trinity University, BS
  • University of Houston Law Center, JD, cum laude