Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Stan Dorr — 1 Patent

PRPrintware: 1 patents #4 of 9Top 45%
Windom, MN: #1,762 of 2,819 inventorsTop 65%
Minnesota: #32,682 of 52,454 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Stan Dorr has been granted 1 US patent while listed as an inventor at Printware. All of these patents were granted in 1993. Stan Dorr ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Stan Dorr in Windom, MN, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5243391 Varying an electric field, during development of a latent electrostatic image with developer solution, in proportion to a sensed concentration of toner that is within the developer solution Tony Williams, Paul Erickson 1993-09-07