Tag Archives: U.S. Patent and Trademark Office

Report: Mazda files patent for new 400hp rotary engine

Despite the fact that Mazda introduced an RX Vision Concept to show that they’re not giving up on the prospect, great uncertainty still looms as to whether or not the production version could happen. Click here for more news on the Mazda RX. If it’s any consolation for Mazda RX fans, the United States Patent […]

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