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ClearSign Technologies Corp is engaged in providing solutions to some of the pressing productivity, energy efficiency, and pollution problems affecting the energy, oil, and gas production, boiler, and processing industries. It believes that its patented ClearSign Core technology can enhance the performance of combustion systems in a broad range of markets, including the energy (upstream oil production and downstream refining), institutional, commercial, and industrial boiler, chemical, and petrochemical industries. The company offers products that include process burners, boiler burners, flares, and ClearSign Eye.
Alpha Pro Tech Ltd is involved in the business of developing, manufacturing, and marketing of disposable protective apparel, building supply, and infection control products principally in the United States. It operates its business through segment which includes Building Supply and Disposable Protective Apparel. It mainly offers a line of construction supply weatherization products, namely house wrap and synthetic roof underlayment as well as other woven material, different styles of disposable products like shoe covers, bouffant caps, gowns, coveralls, lab coats, frocks and other miscellaneous products. It also provides face masks and eye shields. It generates most of its revenues from the sale of products across the United States.