
David TennantDavidTennant
Partner, Intellectual Property
David Tennant is a partner in the Intellectual Property practice at Paul Hastings and is based in the firm’s Washington, D.C. office. He serves clients in all aspects of IP-related legal work with a particular focus on patent litigation and proceedings before the Patent Trial and Appeal Board (PTAB).
Wonderland Switzerland AG as a plaintiff in a litigation in the District of Delaware. Successfully obtained a jury verdict of infringement on all patents and a permanent injunction against all infringing products of the defendant Evenflo.
ResMed in 7 IPRs before the PTAB involving continuous positive airway pressure (CPAP) machines. Successfully obtained final written decisions finding all challenged claims unpatentable, invalidating over 140 claims across seven patents.
- Intellectual Property: Litigation (District of Columbia)
Chambers USA (2026)
- Patent Star, Managing Intellectual Property IP Stars