ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,066, issued on April 21, was assigned to Yanneng Li (Zhangzhou, China).
"Stepless leveler mounted on side of ladder leg" was invented by Yanneng Li (Zhangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stepless leveler mounted on a side of a ladder leg is provided, including an adjuster for a ladder, where the adjuster(s) are symmetrically or is individually fixed to a bottom of the ladder. The adjuster includes a fixing part, a stepless adjustment part, and an adjustable support part, the fixing part is fixedly connected to the ladder, the stepless adjustment part is arranged at a position opposite to the fixing part, and the support ...