NS

Norman Schaefer

DR Diesel Engine Retarders: 4 patents #9 of 43Top 25%
PS Proton Energy Systems: 1 patents #42 of 72Top 60%
📍 Pleasant Valley, CT: #4 of 13 inventorsTop 35%
🗺 Connecticut: #8,504 of 34,797 inventorsTop 25%
Overall (All Time): #1,031,565 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7159444 Combustible gas detection systems and method thereof Edward Demarest, John Koopman, Andrzej E. Stanek, Iris Shiroma, Allan Tomasco +5 more 2007-01-09
6179096 Exhaust brake variable bypass circuit Kevin J. Kinerson, Greg Davies, Sotir Dodi 2001-01-30
6109027 Exhaust restriction device 2000-08-29
5947235 System and method of exhaust brake control 1999-09-07
5845748 Low restriction exhaust brake Gregory T. H. Davies 1998-12-08