Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David D. Bell — 3 Patents

HGHarris Graphics: 1 patents #28 of 89Top 35%
Westerly, RI: #36 of 131 inventorsTop 30%
Rhode Island: #1,879 of 6,211 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David D. Bell has been granted 3 US patents while listed as an inventor at Harris Graphics. The first was granted in 1986 and the most recent in March 1990. David D. Bell ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David D. Bell in Westerly, RI, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D306925 Paint scraper handle 1990-03-27
4768254 Paint scraper tool 1988-09-06
4564290 Apparatus for determining image areas from films and plates Gary Dobson 1986-01-14 $712,000