Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CH

Chi Chen Hsien

Sacramento, CA: #183 of 1,687 inventorsTop 15%
California: #82,707 of 386,348 inventorsTop 25%
Overall (All Time): #673,672 of 4,157,543Top 20%
7 Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
12310828 Reusable incontinence underwear with feces sensing Thomas C. Chan 2025-05-27
12201504 Reusable diaper with feces sensing Thomas C. Chan 2025-01-21
12121430 Reusable diaper Thomas C. Chan 2024-10-22
12102554 Reusable incontinence underwear Thomas C. Chan 2024-10-01
11998429 Reusable menstrual pad Thomas C. Chan 2024-06-04
11375761 Electrochemical antimicrobial face mask 2022-07-05
10660489 Biodegradable magnetic toilet seat cover 2020-05-26