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USPTO Patent Rankings Data through Dec 31, 2025
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Chengzhong Long — 5 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Guangxi, CN: #13 of 252 inventorsTop 6%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Chengzhong Long has been granted 5 US patents while listed as an inventor at Unknown. The first was granted in 2022 and the most recent in April 2025. Chengzhong Long ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Chengzhong Long in Guangxi, CN.

Patents per Year

Patents granted per year, 2022 to 2025Bar chart with a peak of 2 patents in 2025.peak 22022: 1 patents20222023: 1 patents20232024: 1 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D1072359 Children's helmet with display screen — 2025-04-22
D1069248 Helmet with display screen — 2025-04-01
D1033432 Helmet display screen — 2024-07-02
D1004254 T-shirt with screen display — 2023-11-14
D970652 LED face mask — 2022-11-22

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Joseph L. Mann5
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Xiaoxue CHEN5
Mohankumar Krishnan VALIYAMBATH5
Baoquan Tan5
Jack Long5