Westinghouse Air Brake Technologies Corporation

Westinghouse Air Brake Technologies Corporation, commonly known as Wabtec Corporation, is an American multinational company headquartered in Pittsburgh, Pennsylvania. Founded in 1999 through the merger of Westinghouse Air Brake Company (established in 1869) and MotivePower Industries, Inc., Wabtec is a publicly traded company on the New York Stock Exchange under the ticker WAB and is a component of the S&P 500. As of May 2026, the company has approximately 31,000 employees globally and a market capitalization of around $45 billion USD. Its trailing twelve-month revenue as of March 31, 2026, was approximately $11.5 billion USD.

Wabtec is a leading global provider of equipment, systems, digital solutions, and value-added services primarily for the freight and transit rail sectors, also serving mining, industrial, and marine markets. Its extensive product and service portfolio includes manufacturing new locomotives (including battery-electric models), components for locomotives and freight cars (such as braking systems, truck systems, and specialty components), and passenger transit vehicles. The company also provides railway electronics, positive train control (PTC) equipment, digital intelligence solutions, locomotive servicing, overhaul, and repair, and various rail infrastructure products. A significant expansion occurred with the acquisition of GE Transportation in 2019.

In terms of patent litigation, Westinghouse Air Brake Technologies Corporation operates as an active operating company. The provided case data shows one appearance as a plaintiff in a Patent Trial and Appeal Board (PTAB) proceeding, specifically "Westinghouse Air Brake Technologies Corporation v. RAILWARE, INC." This indicates the company engages in patent assertion or defense related to its technology portfolio at the PTAB. Wabtec has also been involved in patent litigation as a defendant, notably against Siemens Mobility, Inc. regarding Positive Train Control (PTC) technology, where Wabtec subsequently filed counter-suits for patent infringement.

Key initiatives and context for Wabtec include its 2019 acquisition of GE Transportation, which substantially bolstered its position in locomotive manufacturing. The company is also at the forefront of sustainable transportation, having unveiled the world's first battery-electric freight locomotive in 2021. Its patent litigation activities, such as those concerning PTC technology, are directly tied to its core business of developing advanced rail transportation solutions.