Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ruxton C. Doubt — 7 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Kent, WA: #128 of 929 inventorsTop 15%
Washington: #14,787 of 76,902 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Ruxton C. Doubt has been granted 7 US patents while listed as an inventor at Unknown. The first was granted in 1987 and the most recent in May 2024. Ruxton C. Doubt ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Ruxton C. Doubt in Kent, WA, US.

Patents per Year

Patents granted per year, 1987 to 2024Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19871988: 1 patents19882014: 1 patents20142015: 1 patents20152018: 1 patents20182021: 1 patents20212024: 1 patents2024

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
11986036 System and method of supplementing human hair volume 2024-05-21
10932509 System and method of supplementing human hair volume Roark M. Doubt 2021-03-02
9877530 System and method for increasing hair volume 2018-01-30
8944076 System and method for increasing hair volume 2015-02-03
8777646 Electrical socket adaptor 2014-07-15
4765856 Process for manufacturing custom moldable hand grip 1988-08-23
4696842 Custom moldable hand grip 1987-09-29