Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Douglas A. Hemink — 4 Patents

TOTorvec: 2 patents #7 of 12Top 60%
Churchville, NY: #39 of 112 inventorsTop 35%
New York: #31,814 of 115,490 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Douglas A. Hemink has been granted 4 US patents while listed as an inventor at Torvec. The first was granted in 2018 and the most recent in March 2022. Douglas A. Hemink ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Douglas A. Hemink in Churchville, NY, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11286775 Rotatable piston assembly 2022-03-29
10339781 Methods and apparatus for monitoring alterness of an individual utilizing a wearable device and providing notification Richard A. Kaplan, Matt Kenyon 2019-07-02
10055964 Methods and apparatus for monitoring alertness of an individual utilizing a wearable device and providing notification Richard A. Kaplan, Matt Kenyon 2018-08-21
9905108 Systems, methods, and apparatus for monitoring alertness of an individual utilizing a wearable device and providing notification Richard A. Kaplan, Matt Kenyon 2018-02-27