Grant Buchanan, Ph.D., Associate

Experienced attorney focused on patent prosecution and litigation

Grant Buchanan is an associate in the firm’s Houston office. He focuses his practice on patent prosecution and patent litigation. Grant has experience in a variety of technical fields including pharmaceuticals, biologics, chemical formulations, medical devices, and electrical-mechanical devices.

In addition to patent prosecution and litigation, Grant has participated in a variety of pro bono matters, including section 1983 cases.

Professional background in the field of chemistry

Prior to joining Patterson + Sheridan in 2017, Grant worked as an associate for a large Pittsburgh-based law firm in Chicago, representing large institutional clients in complex patent litigation matters. Before that, he served as a judicial intern for the Honorable Gray H. Miller at the United States District Court for the Southern District of Texas.

As a graduate student with Professor Richard P. Hsung, Grant authored and co-authored eight publications concerning the total synthesis of natural products and [3+3] hetero-annulation reaction methodology, gave multiple academic and conference speeches about his research, and taught medicinal chemistry. Grant received several fellowships for his proposal to develop novel synthetic strategies and employ them in the synthesis of molecularly complex and biologically active alkaloids.

As an undergraduate, Grant received a research fellowship to attend the University of Texas Southwestern Medical Center where he worked with Professor Jef De Brabander on ring-closing metathesis of macrolactone scaffolds. While attending Trinity University, Grant investigated the stability of aromatic and antiaromatic intermediates with Professor Nancy S. Mills and tutored for the chemistry department.

Practice Areas


  • J.D., University of Houston Law Center, 2015 (Houston Journal of International Law, Moot Court)
  • Ph.D., Organic Chemistry and Pharmaceutical Sciences, University of Wisconsin at Madison, 2011
  • B.S., cum laude, Chemistry with a minor in Economics, Trinity University, 2005

Bar Admissions

  • Illinois State Bar
  • Texas State Bar


  • National Best Brief Award – 2014 Saul Lefkowitz Moot Court Competition
  • National Order of the Scribes
  • Proctor & Gamble Company AFPE Fellowship
  • University of Wisconsin Distinguished Graduate Fellowship


  •   Establishing the Concept of Aza-[3+3] Annulations Using Enones as a Key Expansion of This Unified Strategy in Alkaloid Synthesis, 9 Beilstein J. Organic Chemistry 1170 (2013)
  • Asymmetric Aza-[3+3] Annulation in the Synthesis of Indolizidines: An Unexpected Reversal of Regiochemistry, 3 Organic Letters 4402 (2011)
  • Total Synthesis of (±)-Phomactin A. Lessons Learned in Respecting a Challenging Structural Topology, 76 J. Organic Chemistry 7027 (2011)
  • Constructing the Architecturally Distinctive ABD-Tricycle of Phomactin A through an Intramolecular Oxa-[3+3] Annulation Strategy, 67 Tetrahedron 10105 (2011)
  • Aza-[3+3] Annulations: A New Unified Strategy in Alkaloid Synthesis, 7 Current Organic Chemistry 363 (2010)
  • Total Synthesis of Phomactin A, 11 Organic Letters 1591 (2009)
  • An Enantioselective Synthesis of the ABD Tricycle for (-)-Phomactin A Featuring Rawal’s Asymmetric Diels-Alder Cycloaddition, 350 Advanced Synthesis & Catalysis 2885 (2008)
  • Aza- and Carbo-[3+3] Annulations of Exo-Cyclic Vinylogous Amides and Urethanes. Synthesis of Tetrahydroindolizidines and an Unexpected Formation of Hexahydroquinolines, 64 Tetrahedron 883 (2008).