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Thomas K. Stevens — 3 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Orinda, CA: #227 of 531 inventorsTop 45%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Thomas K. Stevens has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 1990 and the most recent in January 1993. Thomas K. Stevens ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Thomas K. Stevens in Orinda, CA, US.

Patents per Year

Patents granted per year, 1990 to 1993Bar chart with a peak of 1 patents in 1990.peak 11990: 1 patents19901992: 1 patents19921993: 1 patents1993

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D332411 Level tool James Masters 1993-01-12
D323997 Vertical plumb tool James Masters 1992-02-18
4970796 Self supporting spirit level tool James Masters 1990-11-20

Frequent Collaborators

James Masters3 shared

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Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3