Linde Gas & Equipment, 4101 Hamilton Blvd, Theodore, AL 36582, US

Founded in 1907, Praxair Inc. is one of the largest gas suppliers in North and South America. The Fortune 300 Company supplies atmospheric, process and specialty gases, high-performance coatings and technologies to a wide diversity of customers. It also designs, engineers and builds equipment that produces industrial gases for internal as well as external use. Praxair Inc. serves a wide range of industries, including health care, petroleum refining, computer-chip manufacturing, beverage carbonation, aerospace, chemicals and water treatment. The firm is a pioneer in producing oxygen from air using a cryogenic process. Its proprietary and patented technology, Vacuum Pressure Swing Adsorption (VPSA), produces oxygen through the air separation process.