ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,010, issued on April 7.

"Bike trailer frame structure" was invented by Cheh-Kang Liu (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bike trailer frame structure includes a rear frame and a base frame. The rear side of the base frame is mounted with left and right pivot bases, that have a fixing hole (fixing groove) respectively connected to the bottom side of the rear frame through a respective positioning element. Thereby, when the right positioning elements are released, the rear frame can pivot toward the base frame and fold, or can pivot in the direction opposite to the base frame, and then fix the positioning elements to the f...