Patents by Inventor Dahe Zhang

Dahe Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Air-gun spring change accessory

Patent number: D776787

Type: Grant

Filed: October 13, 2015

Date of Patent: January 17, 2017

Inventor: Dahe Zhang

Air-gun spring change accessory