JP

Jeffrey M. Pfeiffer

Delphi Technologies: 6 patents #7 of 923Top 1%
📍 Gaylord, MI: #1 of 26 inventorsTop 4%
🗺 Michigan: #88 of 6,092 inventorsTop 2%
Overall (2004): #5,772 of 270,089Top 3%
6
Patents 2004

Issued Patents 2004

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6758177 Method and apparatus to control a variable valve system Daniel L. McKay, Amanpal S. Grewal 2004-07-06
6758179 Method and apparatus for controlling a variable valve system for an internal combustion engine Daniel L. McKay, Amanpal S. Grewal 2004-07-06
6748910 Method of bounding cam phase adjustment in an internal combustion engine Martin Muller, Edward George Himes 2004-06-15
6732691 Engine phaser control system using phaser instability measurement Jongmin Lee, Timothy M. Nieves, Amanpal S. Grewal 2004-05-11
6718921 Method and apparatus for cleaning an oil control valve for an internal combustion engine Amanpal S. Grewal, Daniel L. McKay, Daniel G. Gauthier, James P. Waters 2004-04-13
6681172 Model-based method of estimating crankcase oil temperature in an internal combustion engine Joon-Ho Yoo 2004-01-20