Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JH

John E. Hohman

NTNoise Cancellation Technologies: 1 patents #25 of 60Top 45%
Evart, MI: #1 of 12 inventorsTop 9%
Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,476,923 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9951950 Gas exchange termination system 2018-04-24
5815582 Active plus selective headset David Claybaugh, Jeffrey N. Denenberg, Ralph Busch 1998-09-29
4550574 Refrigeration system with liquid bypass line 1985-11-05