JH

John Hoffman

ST Stress-Tek: 2 patents #3 of 11Top 30%
Overall (All Time): #1,576,757 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7561034 Vehicle load warning system Keith Reichow, Pat Ryan, Bill Zimmerman, Lee Schwartz 2009-07-14
7113081 Vehicle load warning system Keith Reichow, Pat Ryan, Bill Zimmerman, Lee Schwartz 2006-09-26
4880266 Vehicle ash tray Bruce Jay GREENBAUM 1989-11-14