SJ

Steven F. Johnson

SP Spx: 2 patents #142 of 468Top 35%
HE Hunter Engineering: 1 patents #73 of 117Top 65%
Overall (All Time): #1,623,699 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6263322 Integrated automotive service system and method Tom Kirkevold, Mark Erdrich, Scott E. McIntyre, Robert Pfistor, Nicholas J. Colarelli, III +6 more 2001-07-17
5631831 Diagnosis method for vehicle systems John A. Bird, Martin Franz, Harry M. Gilbert, Michael Shafer 1997-05-20
5452446 Method and apparatus for managing dynamic vehicle data recording data by current time minus latency 1995-09-19