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

Gregory P. Matthews — 33 Patents

General Motors: 33 patents #305 of 18,328Top 2%
Beverly Hills, MI: #43 of 1,381 inventorsTop 4%
Michigan: #1,867 of 86,293 inventorsTop 3%
Overall (All Time): #107,587 of 4,157,543Top 3%
33 Patents All Time

Issued Patents All Time

Showing 26–33 of 33 patents

Patent #TitleCo-InventorsDate
6760656 Airflow estimation for engines with displacement on demand Charles H. Folkerts 2004-07-06
6736108 Fuel and spark compensation for reactivating cylinders in a variable displacement engine Allen B. Rayl, William R. Aro 2004-05-18
6615804 Method and apparatus for deactivating and reactivating cylinders for an engine with displacement on demand Charles H. Folkerts 2003-09-09
6585621 Method and apparatus for providing a consistent transmission load variable Charles H. Folkerts, Jeffrey J. Allen 2003-07-01
5596972 Integrated fueling control Myrna C. Sultan, Charles H. Folkerts, Mark Dennis Kushion 1997-01-28
5465617 Internal combustion engine control Kenneth P. Dudek, Charles H. Folkerts, Ronald A. Davis 1995-11-14
5423208 Air dynamics state characterization Kenneth P. Dudek, Charles H. Folkerts, Ronald A. Davis 1995-06-13
5273019 Apparatus with dynamic prediction of EGR in the intake manifold Kenneth P. Dudek, Charles H. Folkerts 1993-12-28