Kontrol Energy Files Patent Applications With the U.S. Patent and Trademark Office and the Canadian Intellectual Property Office for Its Biocloudtm Technology Nov 30, 2020 | Companies News, Industry, Special Situations / Industrials Visit Kontrol Technologies Corp. page for more research, discussion boards and to like, and share. Source: https://finance.yahoo.com/news/kontrol-energy-files-patent-applications-130000660.html