Patents/Inventors

Changgen Ying

JinhuaCN4 patents

4 Patents

US125032742025
Threadless Vertical Lid-opening Structure for Containers
Zhejiang Coolests Technology Co., Ltd.
0 cites
USD10951522025
Insulated Drinking Cup
Zhejiang Coolests Technology Co., Ltd.
0 cites
US123780442025
Press-type Cup Lid
Zhejiang Coolests Technology Co., Ltd.
0 cites
US120652872024
Threadless Stopper Cover for Containers
Zhejiang Coolests Technology Co., Lid.
0 cites