Andrew Van Osselaer


Education and Clerkships

J.D., University of Texas School of Law, 2018, with high honors; Chancellor; Order of the Coif; Managing Editor, Texas Law Review

B.A., University of Texas at Austin, 2015, with highest honors



Court Admissions

U.S. Court of Appeals for the Fifth Circuit

U.S. District Court for the Southern District of Texas

U.S. District Court for the Northern District of Texas

U.S. District Court for the Western District of Texas


Andrew Van Osselaer is a litigator in the Austin office who handles a varied docket of complex commercial disputes and government investigations across multiple sectors. Whether in an environmental enforcement action or a coverage dispute, Andrew commits himself to working closely with clients to understand the distinct legal and business challenges they face in order to deliver skillfully tailored solutions. Andrew believes creativity and adaptability are the key to great legal service. That is why he strives to look beyond clients’ immediate obstacles to render practical solutions that anticipate their future needs.

Prior to joining Haynes and Boone, Andrew graduated with high honors from the University of Texas School of Law and served as the Managing Editor of the Texas Law Review. Prior to law school, Andrew worked as an entertainment lighting designer in Austin.

Intellectual Property

The Intellectual Property Law 2018 Year In Review

We are pleased to highlight some of our representative intellectual property-related client successes and publications over the past year that might be relevant to your business success in the coming year. We represented clients in 74 inter partes review/PTAB proceedings that were filed in 2018, and our patent prosecution team filed over 2,300 U.S. patent applications and helped issue more than 1,650 U.S. patents just in 2018. We also helped close the IP issues in dozens of financings, M&A transactions, and joint venture/licensing arrangements.

Selected Publications and Speeches

  • “Texas Environmental Law,” co-author, Volumes 45-46, Chapter 12 Storage Tanks, Chapter 34 Insurance, Thomson Reuters, 2020-2021.
  • “Insurance Coverage for Businesses’ COVID-19-Related Losses,” co-presenter, Austin Bar Association Remote CLE, April 15, 2020.
  • “Texas Environmental Law,” co-author, Volumes 45-46, Chapter 12 Storage Tanks (UST, AST, and Solid Waste), Thomson Reuters, 2019-2020.
  • “Ethics and the Environmental Lawyer,” panelist, Texas Environmental Superconference’s Walking a Tightrope, July 31, 2019.
  • “Clean Water Act in 2019: What WOTUS and Maui Mean for Oil and Gas,” presenter, Tarrant County Bar Association Environmental Law Section Luncheon, April 25, 2019.
  • "Data Privacy: What 2019 Holds for U.S. Companies," author, Lexology, 2019.
  • "Texas Rules of Form Companion Report," author, Texas Law Review, 2018.
  • "Texas Rules of Form," reporter, 14th ed., 2018.
  • "Insider Trading Enforcement & Link Prediction," author, 96 TEXAS L. REV. 399, 2017.


Privacy Data

Data Privacy: What 2019 Holds for U.S. Companies

The European Union’s General Data Protection Regulation (GDPR) went into effect in May 2018, clamping down on those that collect E.U. residents’ personal data—wherever they may be. There is much we could learn from the GDPR’s growing pains; but the GDPR is still in its infancy, and legislative wheels are already turning at home: U.S. lawmakers have begun flirting with GDPR-inspired omnibus data-privacy regimes. As a result, companies do not have the luxury of adopting a wait-and-see approach to data privacy compliance. The time to get up to speed is now.

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