ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,431, issued on Sept. 29.
"Squat depth gauge" was invented by Che-Min Chen (Taoyuan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A squat depth gauge includes a base support frame, two rule rods, and an indicator member. The base support frame includes a first rod and two second rods disposed at opposite sides of the first stick. The length of the first rod in the first direction is adjustable. The base support frame is detachable. The rule rods stand at two opposite sides of the first rod. The rule rods include vertical scales which increasing from bottom to top. The indicator is detachably disposed on the rule rods to determine a dis...