Simon J Harrall, Associate

Oil and gas engineer, patent manager and IP attorney

With more than three decades of industry experience, Simon Harrall is not your typical IP lawyer. He brings a unique perspective to his legal practice, having spent his career as an engineer and patent manager at some of the world’s leading oil and gas companies. From working on drilling rigs and designing well completions, to developing prototype systems and managing patent portfolios, Simon’s work has taken him to the Netherlands, the United Kingdom, the Sultanate of Oman and Norway. He also gained experience in minerals extraction while working at an Australian copper smelter during his undergraduate studies. He now joins Patterson + Sheridan’s office in Houston.

Simon’s experience enables him to gain a thorough understanding of clients’ strategic and specific needs, and to anticipate potential issues before they arise. He spent 15 years working as a patent manager, in which he liaised between business management, engineering and legal teams to help them meet their respective goals. Simon also worked closely with outside counsel from various law firms, supporting efforts in patent preparation, prosecution and litigation. In fact, he is a co-inventor on more than 60 issued or pending U.S. patents. Therefore, Simon can relate to his clients because he was in their shoes for many years.

An internationally experienced professional with legal, engineering and business acumen

Intellectual property is a global business, and understanding different cultures is crucial to success when working across borders. Having lived and worked in four continents, Simon is perceptive to cultural nuances and understands how to communicate effectively with teams and clients around the world. And his knowledge goes beyond the legal intricacies — Simon can grasp the value of a particular product or system in the marketplace as well as how to position it to align with a company's overall business strategy.

Simon graduated summa cum laude and Order of the Coif from the University of Houston Law Center, where he was an award-winning editor at the Houston Law Review. He earned his undergraduate degree in chemical engineering from the University of Nottingham in the UK. When he finds spare time, Simon and his wife enjoy discovering the best food and wine Houston has to offer as well as visiting historical sites across the country by motorcycle.

Practice Areas


  • J.D., Summa Cum Laude, University of Houston Law Center, 2019
  • Master of Engineering, Chemical Engineering, University of Nottingham, 1988

Bar Admissions

  • State Bar of Texas

Professional Affiliations

  • Houston Intellectual Property Law Association
  • Society of Petroleum Engineers, life member
  • UK Chartered Management Institute, Associate Member