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

John T. Keller — 4 Patents

TETechnicare: 2 patents #21 of 100Top 25%
ONOhio Nuclear: 1 patents #7 of 13Top 55%
Willoughby, OH: #56 of 230 inventorsTop 25%
Ohio: #18,857 of 73,341 inventorsTop 30%
Overall (All Time): #1,304,050 of 4,157,543Top 35%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4727328 Patient handling arrangements for NMR imaging systems Robert L. Carper 1988-02-23
4673880 Phase sensitive detection in multislice magnetic resonance imaging systems Russell A. Compton, Thomas R. McBride, David M. Kramer 1987-06-16
4223353 Variable persistance video display Robert H. Wake 1980-09-16
4206654 Video display control for diagnostic scanners Lawrence P. Madson, Richard P. Kolman 1980-06-10