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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DW

David Workman — 8 Patents

ADAerosol Dynamics: 1 patents #7 of 23Top 35%
LFL.B. Foster: 1 patents #8 of 30Top 30%
SPSperry: 1 patents #355 of 841Top 45%
TCTsi Group Co.: 1 patents #73 of 151Top 50%
Kitchener, CA: #183 of 1,348 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
David Workman has been granted 8 US patents while listed as an inventor at Aerosol Dynamics. The first was granted in 1980 and the most recent in August 2025. David Workman ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list David Workman in Kitchener, ON, CA.

Patents per Year

Patents granted per year, 1980 to 2025Bar chart with a peak of 4 patents in 2025.peak 41980: 1 patents19802019: 1 patents20192022: 1 patents20222024: 1 patents20242025: 4 patents2025

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12400061 Methods and systems for printed circuit board physical outline estimation and approval Curtis Hunter 2025-08-26
12327073 Methods and systems for printed circuit board component placement and approval Curtis Hunter 2025-06-10
12216975 Methods and systems for printed circuit board component placement and approval Curtis Hunter 2025-02-04
12210809 Methods and systems for printed circuit board component placement and approval Curtis Hunter 2025-01-28
11900033 Methods and systems for printed circuit board component placement and approval Curtis Hunter 2024-02-13
11305138 In situ respirator fit testing Daniel C. Bjorkquist, Arantzazu Eiguren Fernandez, Kenneth Farmer, Melissa Grose, Susanne Vera Hering +2 more 2022-04-19
10519610 Apparatus and method for rail head improvement Korhan Ciloglu, William Douglass Mohr 2019-12-31 $1,713,000
4209342 Dynamic cleaning method and apparatus for removal of remnant material 1980-06-24 $1,203,000