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USPTO Patent Rankings Data through Dec 31, 2025
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David E. Witucki — 7 Patents

Delphi Technologies: 3 patents #1,040 of 4,124Top 30%
General Motors: 2 patents #6,303 of 18,328Top 35%
SHSteering Solutions Ip Holding: 1 patents #316 of 568Top 60%
Apple: 1 patents #12,397 of 18,612Top 70%
Bay City, MI: #59 of 405 inventorsTop 15%
Michigan: #13,705 of 86,293 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
David E. Witucki has been granted 7 US patents while listed as an inventor at Delphi Technologies. The first was granted in 1991 and the most recent in July 2014. David E. Witucki ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list David E. Witucki in Bay City, MI, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
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 $1,083,000
6400899 Ring assembly manufacturing apparatus and method Madhu Sudan Chatterjee, Steven J. Schultz, Charles T. Blue 2002-06-04 $15,206,000
5058696 Variable effort automotive power steering gear and method Richard J. Prebay, John C. Whelton 1991-10-22