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Acacia Research Corporation, together with its subsidiaries, invests in intellectual property and related absolute return assets; and engages in the licensing and enforcement of patented technologies. The company operates through three segments, Intellectual Property Operations, Industrial Operations, and Energy Operations. The company owns or controls the rights to various patent portfolios, which include U.S. patents and foreign counterparts covering technologies used in a range of industries. It also owns, manufactures, and distributes printers and consumable products through dealers and distributors for various industrial printing applications. In addition, the company offers supply-chain printing solutions for manufacturing, transportation and logistics, retail distribution, food and beverage distribution, and pharmaceutical distribution industries; and line matrix printers for mission critical applications within labeling and inventory management, build sheets, invoicing, manifests and bills of lading, and reporting industries. Further, it involved in the acquisition, production and development of oil and gas assets. Acacia Research Corporation was incorporated in 1993 and is headquartered in New York, New York.

The Joint Corp. operates and franchises chiropractic clinics in the United States. The company operates in two segments, Corporate Clinics and Franchise Operations. The Joint Corp. was incorporated in 2010 and is headquartered in Scottsdale, Arizona.

Quarterhill, Inc. engages in the acquisition and management of technology companies offering products and services. It operates through the following segments: Licensing, Systems, Services, and Recurring. The Licensing segment focuses in technology licenses, perpetual software licenses, and other revenues characterized as one-time licenses. The Systems segment comprises contracted projects and OEM products which are distributed directly and through a network of distributor/agency relationships. The services segment consists professional services sold on a time and material consulting basis. The Recurring segments comprises service and maintenance contracts, software maintenance contracts, hosted “software as a service“ applications, revenues from running royalties, and data analytics services. The company was founded by Michel Tewfik Fattouche and Hatim Zaghloul on May 14, 1992 and is headquartered in Kitchener, Canada.

Quarterhill Inc., together with its subsidiaries, operates in intelligent transportation system business in Canada and internationally. The company offers riteSuite, which offers mobility solutions, such as all-electronic tolling, dynamic pricing, agency interoperability, hosted mobility solutions, and machine learning; back-office solutions, which offers account management, customer service, violation processing, and technical services operations; roadside solutions, which offers onsite and remote maintenance and field operations services, including tolling facility support, lane equipment control, and cash management services; and international road dynamics products and services, which offers automated truck weigh stations, toll road systems and equipment, red light and speed enforcement systems, and traffic management and safety systems. It also provides VectorSense, a tire sensor suite; Vehicle Information-In-Motion traffic intelligence system, an integrated traffic control system; permanent Weigh-InMotion systems; portable slow speed Weigh-In-Motion systems; portable wheel load scales; traffic data collection products, vehicle and axle detection equipment, and automated vehicle identification services and equipment; and other hardware and software products and offerings. The company was formerly known as Wi-LAN Inc. and changed its name to Quarterhill Inc. in June 2017. Quarterhill Inc. was incorporated in 1992 and is headquartered in Toronto, Canada.

Research Frontiers Incorporated engages in the development and marketing of technology and devices to control the flow of light worldwide. It develops and licenses suspended particle device (SPD-Smart) light-control technology to companies that manufacture and market the SPD-Smart chemical emulsion, light-control film made from the chemical emulsion, the light-control panels made by laminating the film, and electronics to power end-products incorporating the film, as well as lamination services for and the end-products, such as windows, skylights, and sunroofs. The company's SPD-Smart light-control technology is used in various product applications, including windows, sunshades, skylights, and interior partitions for homes and buildings; automotive windows, sunroofs, sun-visors, sunshades, rear-view mirrors, instrument panels, and navigation systems; aircraft windows; museum display panels, and eyewear products; and flat panel displays for electronic products. It serves architectural, automotive, marine, and aerospace and appliance applications. The company was incorporated in 1965 and is headquartered in Woodbury, New York.