CC

Chi-Han Cheng

YM Yuan Mei: 5 patents #1 of 3Top 35%
📍 Zhumaoya, IL: #1 of 1 inventorsTop 100%
Overall (2019): #38,181 of 560,194Top 7%
5
Patents 2019

Issued Patents 2019

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10464078 Sprinkler structure 2019-11-05
D851209 Sprinkler gun 2019-06-11
D849192 Sprinkler 2019-05-21
10232385 Single or dual sided direction-controllable sprinkler 2019-03-19
D837664 Timer 2019-01-08