Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Unknown › Chenghu Du
CD

Chenghu Du — 4 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Jingmen, CN: #3 of 17 inventorsTop 20%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Chenghu Du has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 2021 and the most recent in February 2024. Chenghu Du ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Chenghu Du in Jingmen, CN.

Patents per Year

Patents granted per year, 2021 to 2024Bar chart with a peak of 2 patents in 2023.peak 22021: 1 patents20212023: 2 patents20232024: 1 patents2024

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D1014845 Hair styling comb — 2024-02-13
D998890 Hair styler Zhifeng SHI 2023-09-12
D977193 Hair curler — 2023-01-31
D915671 Hair straightener — 2021-04-06

Frequent Collaborators

Zhifeng SHI1 shared

Nearby-Ranked Inventors

Jagadeesh Kandasamy4
Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4