Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
GM

George C. Mitchell — 6 Patents

General Motors: 3 patents #4,723 of 18,328Top 30%
CGChrysler Group: 1 patents #1,051 of 2,641Top 40%
Daimlerchrysler Ag: 1 patents #1,774 of 4,854Top 40%
Ypsilanti, MI: #207 of 1,007 inventorsTop 25%
Michigan: #15,817 of 86,293 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
George C. Mitchell has been granted 6 US patents while listed as an inventor at General Motors. The first was granted in 1991 and the most recent in April 2004. George C. Mitchell ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list George C. Mitchell in Ypsilanti, MI, US.

Patents per Year

Patents granted per year, 1991 to 2004Bar chart with a peak of 2 patents in 1991.peak 21991: 2 patents19911993: 1 patents19931998: 1 patents19982003: 1 patents20032004: 1 patents2004

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6727806 Truck tailgate position indicator Jerold L. Massie 2004-04-27
6668617 02 Sensor filter Richard A Radu, Robert J. Nankee, II, William P Eichbrecht, Leon Cribbins, Joseph J. Kopera, Jr. 2003-12-30 $22,139,000
5815828 Method of measuring temperature of a catalytic converter Robert J. Nankee, II, Mark E. McMackin 1998-09-29 $48,433,000
5186080 Engine coastdown control system Robert C. Simon, Jr., Joseph M. Tolkacz, William G. Polom, Peter M. Medich 1993-02-16
5033431 Method of learning gain for throttle control motor David C. Poirier, Joseph M. Tolkacz, Robert C. Simon, Jr., Peter M. Medich 1991-07-23
5025881 Vehicle traction control system with fuel control David C. Poirier, Mark T. Matheny, Steven Joseph Swantick, Gerald J. Wroblewski, Douglas W. Menck +1 more 1991-06-25