Sami Al-Marzoog is an associate in the Washington, D.C. office of Latham & Watkins.

Mr. Al-Marzoog is an intellectual property litigator who focuses on patent litigation. He represents clients in a variety of industries, including pharmaceuticals, medical devices, digital health, and chemicals.

Mr. Al-Marzoog has a wide-range of litigation experience, including pre-suit investigations, fact and expert discovery, summary judgment, and trial.

In addition to his intellectual property practice, Mr. Al-Marzoog maintains an active pro bono practice representing clients seeking expungement of their criminal records.

While in law school, Mr. Al-Marzoog served on the managing board of the Virginia Law and Business Review. He was also the Vice President of the Student Bar Association and a member of the Raven Society.

Prior to attending law school, Mr. Al-Marzoog worked for a large oil company in Saudi Arabia as an environmental coordinator and a drilling-fluids engineer.

Mr. Al-Marzoog graduated from the University of Minnesota – Twin Cities with a BS in Chemical Engineering and a minor in Chemistry.

Mr. Al-Marzoog's representation experience includes:

  • First Quality v. Irving (D.De.): Counsel in jury trial victory for Irving Consumer Products against First Quality in the US District Court for the District of Delaware. Retained one week before the close of fact discovery. First Quality alleged that Irving infringed on three patents relating to bath tissue. After a week-long trial, the jury returned a verdict for our client, Irving, finding that all three patents were not infringed and were invalid.
  • Philip Morris v. RJ Reynolds (E.D.V.A.): Counsel in jury trial victory for Philip Morris against RJ Reynolds in the US District Court for the Eastern District of Virginia. Philip Morris accused Reynolds of infringing two patents covering innovative “heat-not-burn” technologies. After a four-day trial, the jury returned a multi-million dollar verdict for our client finding both patents were infringed and valid.

Bar Qualification

  • District of Columbia
  • Minnesota


  • JD, University of Virginia School of Law, 2017
  • BS in Chemical Engineering & Chemistry, University of Minnesota, 2012

Languages Spoken

  • Arabic
  • English
May 12, 2022 Our Work

Skilled in the Art: Latham Flushes High-Tech Tissue Patents

A Latham team led by partners Matt Moore, Max Grant, and Charles Sanders persuaded a Delaware jury last week that Members Mark tissue does not infringe three patents held by First Quality Tissue, the maker of Panda bath tissue.