CY

Chengpeng Yu

Overall (All Time): #951,731 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11241903 Lift-pull pen — 2022-02-08
11241904 Retractable pen — 2022-02-08
10974540 Retractable pen with a push button — 2021-04-13
10960705 Detachable and retractable pen — 2021-03-30
10718514 Garbage incineration device for garbage disposal — 2020-07-21