Greenbutts secures Canadian patent for biodegradable cigarette filter
In Canada, Greenbutts LLC. announced that on July 11, 2022, the Canadian Intellectual Property Office granted Canadian Patent No. 2,949,484 for Greenbutts’ patent application titled ‘Biodegradable Cigarette Filter Tow and Method of Manufacture’. The patent adds to Greenbutts’ proprietary technology stack, offering an all-natural, biodegradable and water dispersing cigarette filter. This Canadian patent grant follows several other countries […]
