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

John E. Halowell — 3 Patents

WBWestinghouse Air Brake: 3 patents #223 of 671Top 35%
Montgomery Village, MD: #28 of 97 inventorsTop 30%
Maryland: #10,230 of 35,612 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John E. Halowell has been granted 3 US patents. The first was granted in 2015 and the most recent in September 2021. John E. Halowell ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John E. Halowell in Montgomery Village, MD, US.

Patents per Year

Patents granted per year, 2015 to 2021Bar chart with a peak of 1 patents in 2015.peak 12015: 1 patents20152017: 1 patents20172021: 1 patents2021

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11124209 Determining loss of communication between rail vehicles Padam Dhoj Swar, Sathya Vagheeswar Venkatasubramanian 2021-09-21 $57,398,000
9783213 Impact resistant end of train device D. Andrew Gloyd, David McCary, Benjamin Henniges 2017-10-10 $37,868,000
9083861 Visual data collection system for a train Carl L. Haas 2015-07-14 $31,142,000