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

David E. Witucki

Delphi Technologies: 3 patents #1,040 of 4,124Top 30%
General Motors: 2 patents #6,250 of 18,328Top 35%
Apple: 1 patents #12,251 of 18,612Top 70%
SHSteering Solutions Ip Holding: 1 patents #316 of 568Top 60%
Bay City, MI: #59 of 405 inventorsTop 15%
Michigan: #13,574 of 86,293 inventorsTop 20%
Overall (All Time): #741,753 of 4,157,543Top 20%
7 Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
8783128 Steering column manufacturing machine and method of manufacturing a steering column Robert W. Dubay, Dennis G. McDonagh 2014-07-22
8096036 Method of manufacturing a steering column Robert W. Dubay, Dennis G. McDonagh 2012-01-17
7832936 Axial delash mechanism Thomas M. Tighe 2010-11-16
7556293 Telescoping steering column assembly and method of manufacturing the assembly William D. Cymbal, Marvin V. Manwaring, Ravi Ravindra 2009-07-07
6638390 Gear production process Bradley Sizelove, Steven J. Schultz, Todd F. Jammer, William W. Heminghous 2003-10-28
6400899 Ring assembly manufacturing apparatus and method Madhu Sudan Chatterjee, Steven J. Schultz, Charles T. Blue 2002-06-04
5058696 Variable effort automotive power steering gear and method Richard J. Prebay, John C. Whelton 1991-10-22