Teagan focuses his practice on complex civil litigation, with an emphasis on intellectual property and licensing disputes as well as antitrust disputes. He has litigated patent cases across a range of fields, including biotechnology, pharmaceuticals, and medical and mechanical devices. Teagan has represented clients in proceedings under the BPCIA and the Hatch-Waxman Act.
Teagan was born and raised in Newark, Delaware and graduated magna cum laude from the University of Delaware in 2009. He received his J.D., magna cum laude, from the University of Michigan where he was a Clarence Darrow Scholar and an editor of the Michigan Law Review.
Teagan joined Williams & Connolly in 2013, after serving as a law clerk to the Honorable Gregory M. Sleet of the United States District Court for the District of Delaware. He is a member of the firm’s Hiring Committee.
Representative Experience
Though all cases vary and none is predictive, Teagan’s experience includes:
- Counsel for Regeneron in BPCIA litigation regarding Eylea (aflibercept).
- Counsel for Genentech in BPCIA litigation and related proceedings regarding Avastin (bevacizumab).
- Counsel for Jazz Pharmaceuticals in litigation alleging certain conduct was anticompetitive.
- Counsel for Beckman Coulter in patent litigation relating to flow cytometry products.
- Counsel for Cytiva in patent litigation relating to protein A chromatography products.
- Defense of a faculty member in Title IX proceedings, resulting in a finding of not responsible.
- Counsel for AstraZeneca in patent litigation regarding Calquence (acalabrutinib).
- Counsel for Bayer in Hatch-Waxman litigation regarding Nexavar (sorafenib).
- Counsel to a venture-backed medical device company in a confidential arbitration over a dispute involving the interpretation of a Warrant Agreement.
- Counsel for global pharmaceutical client in antitrust case defending allegations that the company engaged in anticompetitive conduct to delay generic competition of pharmaceutical product.