Regular Post Written by MOCC 1 June 2018 Morriss O’Bryant Compagni Cannon obtains patent for BEIJING HELEE BIO-ENERGY LTD. Title: CONTAINER-TYPE BIOGAS PURIFICATION FILM METHOD PURIFICATION SYSTEM Patent No.: 9,975,085 Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related Issued Patents 0