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

William Cohoon — 11 Patents

EXExtang: 5 patents #11 of 37Top 30%
THTectum Holdings: 2 patents #4 of 15Top 30%
THThetford: 2 patents #50 of 102Top 50%
RHRetrax Holdings: 1 patents #15 of 19Top 80%
TRTruxedo: 1 patents #6 of 11Top 55%
Whitmore Lake, MI: #3 of 19 inventorsTop 20%
Michigan: #8,574 of 86,293 inventorsTop 10%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
William Cohoon has been granted 11 US patents while listed as an inventor at Extang. The first was granted in 2010 and the most recent in March 2025. William Cohoon ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list William Cohoon in Whitmore Lake, MI, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12246585 Bias regulated rolling truck bed cover Chad Carter, Ryan DeLong, Jerome Facchinello, Robert Gaarder, Wilbur Paul Winkle, III 2025-03-11
11673457 Bias regulated rolling truck bed cover Chad Carter, Ryan DeLong, Jerome Facchinello, Robert Gaarder, Wilbur Paul Winkle, III 2023-06-13
11577590 Bias regulated rolling truck bed cover Chad Carter, Ryan DeLong, Jerome Facchinello, Robert Gaarder, Wilbur Paul Winkle, III 2023-02-14
11292322 Tonneau cover system with insert for supporting cross-bow members Mark Alan Hickey 2022-04-05
11186149 Bias regulated rolling truck bed cover Chad Carter, Ryan DeLong, Jerome Facchinello, Robert Gaarder, Wilbur Paul Winkle, III 2021-11-30
11180009 Bias regulated rolling truck bed cover Chad Carter, Ryan DeLong, Jerome Facchinello, Robert Gaarder, Wilbur Paul Winkle, III 2021-11-23
10737563 Bias regulated rolling truck bed cover Chad Carter, Ryan DeLong, Jerome Facchinello, Robert Gaarder, Wilbur Paul Winkle, III 2020-08-11
10112464 Roll-up tonneau cover system with grooved side rails Joseph J. Koengeter, Lucas R. Spray 2018-10-30
9969249 Tonneau cover system with side rail mounted latches and a rear header mounted release actuator Michael R. Spencer 2018-05-15
8529223 Dual diaphragm pump assembly for a sanitation system George Grech, Steven A. Meyer 2013-09-10
7765625 Flush toilet assembly Sheryar Durrani, Greg Exner 2010-08-03