RH

Ronald J. Herrin

General Motors: 7 patents #2,246 of 18,328Top 15%
Overall (All Time): #733,050 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9759140 Fifty percent burn crankshaft angle estimation systems and methods Gary Robert Cygan, Jr., Chao F. Daniels, Jason R. Bartak 2017-09-12
9759177 System and method for controlling spark timing based on a duration of a fuel burn within a cylinder in an engine Gary Robert Cygan, Jr., Chao F. Daniels, Jason R. Bartak 2017-09-12
8532908 System and method for estimating indicated mean effective pressure of cylinders in an engine Jeffrey A. Morgan, David S. Mathews, John V. Bowman, Julian R. Verdejo 2013-09-10
7530337 High overlap camshaft for improved engine efficiency Richard S. Davis, Gary J. Patterson 2009-05-12
6843214 Method for balancing engine cylinder bank output using crankshaft sensing and intake cam phasing 2005-01-18
6837231 Cylinder bank work output balancing based on exhaust gas A/F ratio 2005-01-04
4223648 Hydraulic valve lifter Donald J. Pozniak 1980-09-23