DM

David R. McMahan

General Motors: 25 patents #479 of 18,328Top 3%
GU Guide: 3 patents #5 of 58Top 9%
Overall (All Time): #140,011 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
7192315 Terminals for bulb sockets Christopher R. Powers, Paul D. Van Duyn, Ismael Garcia, Carey D. Marks 2007-03-20
7063575 Terminal alignment features for bulb sockets Christopher R. Powers, Paul D. Van Duyn, Ismael Garcia, Carey D. Marks 2006-06-20
7014510 Wedge base sealed lamp socket Christopher R. Powers, Paul D. Van Duyn, Carey D. Marks, Ismael Garcia 2006-03-21
5402325 Vehicle headlamp assembly Jan A. Wisler, Chad E. Spencer, William E. Nagengast 1995-03-28
5386349 Vehicle headlamp assembly Ronald A. Wheat, Paul D. Van Duyn 1995-01-31
5351170 Vehicle headlamp assembly William E. Nagengast, Jan A. Wisler, Luis A. Mateos, Michael W. Ballentine 1994-09-27
5253154 Headlamp leveling arrangement William E. Nagengast, Terry L. Coombs, Bradley A. Merrill, Ronald A. Wheat, Jan A. Wisler 1993-10-12
5095410 Retainer arrangement for a replaceable lamp bulb assembly William E. Nagengast, Philip C. Filosa, Harry L. Kirchenbauer 1992-03-10
5063480 Vehicle headlamp adjustment device William E. Magengast, Luis A. Mateos 1991-11-05
5003446 Composite headlamp vent device William E. Nagengast, James S. Mellinger 1991-03-26
4970629 Headlamp assembly 1990-11-13
4926301 Headlamp assembly Martin K. Liverance, Bartly A. Haydu 1990-05-15
4882660 Headlamp assembly Martin K. Liverance, Bartly A. Haydu 1989-11-21
4851976 Headlamp bulb retaining arrangement William E. Nagengast, John D. Geddie 1989-07-25
4794495 Headlamp assembly Richard W. Nicholas, Thomas E. Persing, John D. Geddie 1988-12-27
4761717 Headlamp pivot assembly Harry S. Murphy, William E. Nagengast 1988-08-02
4747029 Headlamp assembly Martin K. Liverance, Bartly A. Haydu 1988-05-24
4731707 Vehicle headlamp assembly Harry S. Murphy, John D. Geddie 1988-03-15
4712164 Vehicle headlamp assembly Leslie H. Hallgarth, Gary L. Miller 1987-12-08
4709305 Electrical connector for headlight assembly John D. Geddie 1987-11-24
4707771 Support shoe for a vehicle headlamp assembly Paul D. Van Duyn, John D. Geddie, William E. Nagengast 1987-11-17
4639840 Vehicle headlamp assembly Richard W. Nicholas 1987-01-27
4599681 Vehicle headlamp assembly Richard W. Nicholas 1986-07-08
4415956 Retainer member for a vehicle headlamp 1983-11-15
4413856 Hardbar energy absorbing bumper system for vehicles Gary P. Zeller, Ronald W. Slaughter, Martin D. Skirha, Dean M. Bayer 1983-11-08