TOPSOE, INC.

TOPSOE, INC. is the U.S. subsidiary of Topsoe A/S, a privately owned Danish company founded in 1940 by Haldor Topsøe. While the global headquarters for Topsoe A/S is in Kgs. Lyngby, Denmark, TOPSOE, INC. maintains offices in Houston, Pasadena, and Washington D.C., with a production plant in Pasadena, Texas. Topsoe A/S is primarily owned by Topsøe Holding A/S (~68%), Dahlia Investment Pte. Ltd. (~29%), and company employees (~2%). The parent company reported approximately 2,800 employees globally and a revenue of DKK 8197 million in 2025 (or USD 1.366.97 million in 2023).

TOPSOE, INC. and its parent company specialize in advanced technology and solutions for the energy transition, with a core focus on catalysis and process technology. Their offerings include world-leading solutions for transforming renewable resources into fuels and chemicals, such as sustainable aviation fuel (SAF), ammonia, hydrogen, and methanol. They also provide technologies for low-carbon and conventional fuel and chemical production, as well as emission control solutions for various industries including marine, aviation, and refineries.

In terms of patent litigation, TOPSOE, INC. has a posture consistent with an operating company actively protecting its intellectual property. The company is recorded as a plaintiff in one tracked case before the Patent Trial and Appeal Board (PTAB), indicating engagement in asserting or challenging patents.

The sole tracked case involves TOPSOE, INC. as the plaintiff in TOPSOE, INC. v. L'Air Liquide SA pour l'Etude et l'Exploitation des Procedes Georges Claude, filed on 2025-08-05 before the Patent Trial and Appeal Board. This suggests that TOPSOE, INC. is involved in disputes concerning the validity or infringement of patents relevant to its technological domains.