DP

David M. Preston

EA Eaton: 48 patents #9 of 3,708Top 1%
SS Sci Systems: 7 patents #4 of 49Top 9%
DL Dana Limited: 1 patents #464 of 1,099Top 45%
📍 Madison Heights, MI: #1 of 274 inventorsTop 1%
🗺 Michigan: #656 of 86,293 inventorsTop 1%
Overall (All Time): #40,517 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 51–59 of 59 patents

Patent #TitleCo-InventorsDate
5024463 Manually power mechanical actuator for parallel auxiliary spring James L. Oliver, James A. Juriga, Erlen B. Walton 1991-06-18
4982972 Hydraulic pump and actuator for parallel auxiliary leaf spring Erlen B. Walton, James L. Oliver, James A. Juriga 1991-01-08
4966246 Four wheel steering system David A. Janson, Jerome V. Glinski, Jr. 1990-10-30
4949803 Four wheel steering system David A. Janson, Jerome V. Glinski, Jr. 1990-08-21
4940109 Split arm throttle cable intervention device Donald Haefner 1990-07-10
4830128 Four wheel steering having closed hydraulic system with pressure relief Peter S. Winckler 1989-05-16
4776418 Four wheel steering having closed hydraulic system with pressure control assembly Peter S. Winckler 1988-10-11
4724879 Central tire inflation system Gary R. Schultz 1988-02-16
4595349 Supercharger rotor, shaft, and gear arrangement Raymond A. Soeters, Jr. 1986-06-17