Today’s Patent – Auxiliary Device for Applying Protective Film
The said invention (US12214543B1) was invented by Ziqiang Li and patented by USPTO on April 22nd, 2024. Currently, it stands assigned to the Individual.

The disclosed invention is an auxiliary device for applying protective film, comprising a film application box with an accommodation cavity located at one end. The box features two symmetrical sliding groove holes, each housing a movable block. At the front end of each movable block, an installation box is securely mounted, while the rear end is equipped with a stop block. Inside the accommodation cavity, two limiting rings are fixedly installed to aid in positioning. Additionally, one side of the film application box holds the protective film ready for application.
Aims to provide an auxiliary device for applying protective film. It features a film application box with an accommodation cavity at one end, two symmetrical sliding groove holes housing movable blocks, installation boxes fixed at the front ends, and stop blocks at the rear ends of the movable blocks. This design facilitates precise and efficient application of protective films.