ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,799, issued on Dec. 16, was assigned to HANGZHOU YIXIANG TECHNOLOGY RESEARCH AND DEVELOPMENT Co. LTD. (Hangzhou, China).

"Multi-form tent" was invented by Baichen Dong (Hangzhou, China), Yulin Ye (Hangzhou, China), Jianing Zhu (Hangzhou, China), Chao Gu (Hangzhou, China) and Bailin Xu (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-form tent comprises a main body and a base, the main body being installed on the base, the outer tent being at least partly located above the inner tent, the inner tent supporting the middle of the outer tent, the inner tent and the outer tent being detachably connected, wherein there are at least ...