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

John R. Bitner — 2 Patents

General Motors: 2 patents #6,303 of 18,328Top 35%
Rushville, IN: #7 of 25 inventorsTop 30%
Indiana: #13,817 of 33,936 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John R. Bitner has been granted 2 US patents while listed as an inventor at General Motors. All of these patents were granted in 1991. John R. Bitner ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John R. Bitner in Rushville, IN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5000300 Hydraulic retarder and control Donald Klemen, Dennis M. Cooke, J. Thomas Craig 1991-03-19
4981198 Hydraulic retarder and control Donald Klemen, James P. Ordo 1991-01-01