"He is unbelievably engaging – not to mention brilliant."
Chambers & Partners USA


IP clients turn to Alan Grimaldi for representation in the consumer goods, smartphone, televisions, computers, semiconductors, health care, chemical, electronics, automotive, banking, defense, energy and oil, and drug industries. Clients benefit from his extensive experience in both offensive and defensive patent and other intellectual property litigation, mediation and arbitration. A few of his accomplishments include a jury verdict of non-infringement after a five-week trial in the federal court in Arizona, a $76 million judgment against the United States in a breach of contract case for a Midwestern banking client and a reversal of a damages award by the Federal Circuit for a client in the airline industry. Most notably, he has tried, been a part of a trial team or has helped settle plaintiff cases that resulted in well over $350 million to clients in the technology and banking industries.

Alan also has significant experience advising on all aspects of private and government antitrust and other complex commercial litigation, including litigation involving nationwide class actions, multiple districts in federal and state courts, federal and state administrative agencies, unfair competition, insurance coverage, products liability, and trade-related matters. Several cases were decided favorably by the Supreme Court of California and the United States Supreme Court.

Alan was co-chair of Mayer Brown’s Global Intellectual Property Practice, during the time it doubled in size within five years. At his former firm, he was co-chair of a 250-member intellectual property practice and was previously co-chair of that firm's commercial trial group.

Alan clerked for the honorable Barrington D. Parker, US District Court for the District of Columbia from 1971-1972 and worked at the US Patent and Trademark Office from 1967-1971 (including clerkships to the Board of Appeals, Assistant Commissioner, and Office of International Affairs).

Lenguajes Hablados

  • English


  • Maxell, Ltd. v. ZTE Corporation et al. (E.D. Tex. 2018) – Part of the trial team that secured a $43.3m verdict in patent enforcement action involving wireless technology–smartphone applications and infrastructure.
  • Many patent infringement cases in district courts and ITC cases for Maxell, Ltd. against Apple, Vizio, Lenovo, and BLU in the smartphone and television industries.
  • U.S. Philips Corp. v. LG Electronics, et al. (S.D.N.Y.) Represented Philips in the US arm of worldwide litigation against LG for infringement of patent essential to the JPEG compression standard, working with multiple international law firms to coordinate litigations in several jurisdictions, including Korea, the Netherlands, Germany, the United Kingdom and France. (eight-figure settlement was achieved).
  • U.S. Philips Corp. v. Palm, Inc. (N. D. Cal.) Represented Philips in assertion of patent essential to JPEG compression standard, accusing Palm’s mobile phones of infringement. Resulted in favorable seven figure settlement after mediation.
  • U.S. Philips Corp. v. ATI Technologies, Inc. (S.D.N.Y.). Represented Philips (on behalf of NXP) against ATI for infringement of a patent essential to the practice of the l2C bus specification. The case was settled on behalf of NXP for a seven figure confidential payment.
  • Fifth Third Bank. Represented Fifth Third Bank in a breach of contract case brought against the government for client Fifth Third Bank. Two trials over five weeks and two appeals. Was lead counsel in securing a $76 million judgment for our client. This court had never awarded more than $75,000 for any plaintiff against the government.
  • DuPont Air Products NanoMaterials v. Cabot Microelectronics. Co-Lead Counsel in this patent infringement case representing DA NanoMaterials of Tempe, Arizona, a joint venture between DuPont and Air Products. The team secured jury verdict of non-infringement of all asserted claims on all four patents at issue. The jury also found no infringement under the doctrine of equivalents and no willful infringement. The Federal Circuit affirmed the jury verdict.
  • EcoServices, LLC v. Certified Aviation Services, LLC (Central District of California). Co-counsel for the defendant, Certified Aviation Services, LLC, in a recent jury trial involving patent infringement matter between competitors in the aircraft engine wash industry. The Federal Circuit reversed a jury decision on damages, and the case was settled after remand.
  • In Re Neurografix (D. Mass.). Numerous cases alleging infringement of patents related to MRI's. Matter was settled after mediation.
  • Numerous defensive cases for Philips’ Electronics, Medical, Semiconductor and IP&S group over a 15-year period.


The Catholic University of America, Columbus School of Law, JD
Catholic University Law Review, Editor (1969-1971)

The City College of The City University of New York, BS, Chemical Engineering



  • Maryland
  • District of Columbia


  • US Court of Appeals for the Fifth Circuit
  • US International Trade Commission
  • US Supreme Court
  • US District Court for the District of Columbia
  • US Court of Appeals for the First Circuit
  • US Court of Appeals for the Third Circuit
  • US Court of Appeals for the Fourth Circuit
  • US Court of Appeals for the Sixth Circuit
  • US Court of Appeals for the Ninth Circuit
  • US Court of Federal Claims
  • US District Court for the District of Maryland
  • US Patent and Trademark Office
  • Chambers & Partners USA – Washington DC: Intellectual Property: Litigation
  • IAM Patent 1000 – DC Metro Area
  • Managing Intellectual Property – IP Star and Luminary
  • Washington DC Patent Law Lawyer of the Year, Best Lawyers
  • Washington Post Best Lawyer’s for Washington DC & Baltimore
  • Super Lawyers
  • Pro Bono Partner of the Year – Mayer Brown
  • Whitman-Walker Legal – Lifetime Achievement Award
  • Human Rights First – On team awarded “Firm of the Year" for obtaining asylum for four related juveniles from El Salvador