Greenkraft Inc., a manufacturer of alternative fuel trucks and systems, says the U.S. Patent and Trademark Office has filed and recorded rights and patents associated with the company's propane autogas fuel system.
Greenkraft says the invention relates to the conversion of vehicles to run on propane (liquefied petroleum gas) and ‘can be used to produce trucks running on propane fuel and other alternative fuel systems that allow vehicles to run on propane fuel.’
The company also designs and manufactures compressed natural gas (CNG) forward-cabin trucks, alternative fuel systems and alternative fuel engines.
