Clean Diesel Technologies, Inc. manufactures and distributes light duty vehicle catalysts and heavy duty diesel emissions control systems and products to automakers, distributors, integrators, and retrofitters in the United States, Canada, Sweden, and the United Kingdom. It operates through two divisions, Catalyst and Heavy Duty Diesel Systems. The Catalyst division develops and produces catalysts to reduce emissions from gasoline, diesel, and natural gas combustion engines. This division s products include catalysts for gasoline and diesel engines, as well as for energy applications. The Heavy Duty Diesel Systems division designs and manufactures verified exhaust emissions control solutions. This division s products comprise diesel particulate filters, diesel oxidation catalysts, closed crankcase ventilation systems, alternative fuel products, and other components. This division markets its regenerating diesel particulate filters under the Purifilter, Combifilter, Purifier, Actifilter, Cattrap, and DuraFit brand names. The company markets and sells its products through a network of dealers and distributors, as well as directly to original equipment manufacturers. Clean Diesel Technologies, Inc. was founded in 1996 and is headquartered in Oxnard, California.