ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,507,808, issued on Dec. 30, was assigned to STEP2GOLD Co. LTD. (Taichung, Taiwan).
"Foldable chair" was invented by Chih-Ting Pao (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A foldable chair includes a support unit, a sliding base, and a seat unit. The support unit includes a pivot base, a main support rod and two auxiliary support rods connected to the pivot base. The sliding base is sleeved on the main support rod. The seat unit includes a seating subunit connected to the sliding base. The seat unit further includes a linkage subunit that includes a first linkage rod connected to the pivot base, a second linkage rod connected to t...