PF

P. Douglas Free

CE Cummins Engine: 3 patents #121 of 765Top 20%
WR Westport Research: 1 patents #18 of 45Top 40%
Overall (All Time): #1,259,670 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7090145 Liquid cooled fuel injection valve and method of operating a liquid cooled fuel injection valve S. Michael Baker, Victor J. Perr 2006-08-15
6202413 Multiple nozzle ejector for wastegated turbomachinery Glenn L. Baker, Gregory H. Henderson 2001-03-20
5937807 Early exhaust valve opening control system and method Lester L. Peters, David A. Vittorio, Amarjit S. Ghuman, Harold G. Weber, Canden R. Nelson 1999-08-17
5372114 Dampened pressure regulating and load cell tappet Gary L. Gant, James R. Katzenmeyer, Donald E. Duckworth, George L. Muntean 1994-12-13