JP

Julius P. Perr

CE Cummins Engine: 41 patents #2 of 765Top 1%
CU Cummins: 1 patents #780 of 1,560Top 50%
WR Westport Research: 1 patents #18 of 45Top 40%
📍 Columbus, IN: #23 of 1,378 inventorsTop 2%
🗺 Indiana: #399 of 33,936 inventorsTop 2%
Overall (All Time): #71,168 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 26–43 of 43 patents

Patent #TitleCo-InventorsDate
5002022 Valve control system with a variable timing hydraulic link 1991-03-26
4986472 High pressure unit fuel injector with timing chamber pressure control Timothy Warlick, Jeffrey L. Campbell, Lester L. Peters, Michael E. Lucas, Kuang-Wen T. Wan 1991-01-22
4971016 Electronic controlled fuel supply system for high pressure injector Lester L. Peters, Edward D. Smith 1990-11-20
4962743 Injection rate control cam Eric Keng-Hao Liang, Robert C. U. Yu, Amarjit S. Ghuman 1990-10-16
4944275 Fuel injector train with variable injection rate 1990-07-31
4934344 Modified four stroke cycle and mechanism 1990-06-19
4911127 Fuel injector for an internal combustion engine 1990-03-27
4909219 Hydromechanical fuel pump system Lester L. Peters, Edward D. Smith 1990-03-20
4909197 Cam follower assembly with pinless roller 1990-03-20
4721247 High pressure unit fuel injector 1988-01-26
4471909 Miniaturized unit fuel injector 1984-09-18
4463901 Unit fuel injector having independently controlled timing and metering Lester L. Peters 1984-08-07
4410137 Miniaturized unit fuel injector employing hydraulically controlled timing 1983-10-18
4395979 Pressure limiting hydraulic tappet 1983-08-02
4249499 Timing mechanism for a fuel supply system 1981-02-10
4206734 Adjustable timing mechanism for fuel injection system Andrew C. Rosselli 1980-06-10
4207035 Turbocharger assembly George L. Muntean 1980-06-10
RE30189 Fuel injection system for diesel engines 1980-01-15