Nathan I. Cox

Nathan I. Cox is a patent litigation attorney with Carter Arnett, focusing his practice on disputes involving electric vehicle (EV) charging technologies. His experience includes intricate matters related to EV charging systems, encompassing features such as touch-sensitive interfaces, automated charging, and climate control integration during vehicle charging. His client representation in these areas positions him at the intersection of automotive and software intellectual property.

Within his practice, Mr. Cox demonstrates experience on both sides of patent disputes, with two tracked appearances on the plaintiff side and one on the defendant side, all centering on a core patent controversy. This balanced experience comes from his involvement in the notable cases of Charge Fusion Technologies, LLC v. Tesla, Inc. and Tesla, Inc. v. Charge Fusion Technologies, LLC. Carter Arnett, a litigation boutique, emphasizes its intellectual property practice, particularly in patent litigation within Texas federal courts and before the United States Patent and Trademark Office (USPTO).

The Charge Fusion Technologies v. Tesla, Inc. cases are prominent in his work, encompassing extensive inter partes review (IPR) proceedings at the Patent Trial and Appeal Board (PTAB) and subsequent appeals to the U.S. Court of Appeals for the Federal Circuit. Outcomes have included Federal Circuit split decisions, such as a mixed ruling on a patent covering EV charging systems with touch-sensitive interfaces (US10819135B2), which was affirmed-in-part, reversed-in-part, vacated-in-part, and remanded. Another Federal Circuit decision provided a partial win for Tesla by invalidating a claim related to a climate-control charging patent after PTAB challenges. Separately, Charge Fusion successfully defended another patent (US10998753) concerning automated charging. These cases highlight Mr. Cox's involvement in complex, high-stakes patent litigation with significant PTAB and Federal Circuit activity.

The firm's broader intellectual property team at Carter Arnett has also secured favorable results in patent trials, including a $9.2 million verdict for Katana Silicon Technologies, LLC against GlobalFoundries in a semiconductor patent case, which also involved successfully defeating IPR petitions.