ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,304, issued on April 21, was assigned to GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES (Guangzhou, China).

"Production and transportation system for natural gas hydrates" was invented by Xiaosen Li (Guangzhou, China), Yisong Yu (Guangzhou, China), Jianwu Liu (Guangzhou, China), Wenzhe Sun (Guangzhou, China) and Zhaoyang Chen (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A production and transportation system for natural gas hydrates includes a gas storage reservoir, a plurality of hydrate storage and transportation tanks, a refrigerator, a pressure regulating valve, a liquid storage tank, a living quarter/...