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%
Overall (All Time): #71,168 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 25 most recent of 43 patents

Patent #TitleCo-InventorsDate
6964270 Dual mode EGR valve John M. Janssen, Bruce A. Watson, Charles R. Schenk, Josh Si Shao, Lester L. Peters +2 more 2005-11-15
6557779 Variable spray hole fuel injector with dual actuators J. Victor Perr, Lester L. Peters, Donald J. Benson, John T. Carroll, III 2003-05-06
6336598 Gaseous and liquid fuel injector with a two way hydraulic fluid control valve Alain Touchette, Bradley D. Douville, S. Michael Baker, Lester L. Peters, A. S. Ghuman +1 more 2002-01-08
5983863 Compact high performance fuel system with accumulator Mark S. Cavanagh, Bryan W. Swank, Arpad M. Pataki, Bela Doszpoly, John D. Lane +6 more 1999-11-16
5979803 Fuel injector with pressure balanced needle valve Lester L. Peters, Benjamin M. Yen, George L. Muntean, J. Victor Perr, John D. Crofts 1999-11-09
5954029 Unit fuel injector having constant start of injection Lester L. Peters, Bai Mao Yen 1999-09-21
5899389 Two stage fuel injector nozzle assembly Arpad M. Pataki, Lester L. Peters, Benjamin M. Yen 1999-05-04
5765755 Injection rate shaping nozzle assembly for a fuel injector Lester L. Peters, A. S. Ghuman, Benjamin M. Yen, Chad L. Buchanan, Robert A. Samuel +4 more 1998-06-16
5713335 Variable injection timing and injection pressure control arrangement Lester L. Peters, Amarjit S. Ghuman, Benjamin M. Yen, Edward D. Smith, David L. Buchanan +3 more 1998-02-03
5619969 Fuel injection rate shaping control system Chung Y. Liu, Benjamin M. Yen, Lester L. Peters, Russ P. Durrett, Donald N. Case +4 more 1997-04-15
5611317 Open nozzle fuel injector having drive train wear compensation Lester L. Peters, Yul J. Tarr 1997-03-18
5518030 Three-way flow valve with variable drain orifice area Chung Y. Liu, Benjamin M. Yen, Lester L. Peters 1996-05-21
5445323 High pressure fuel injector including a trapped volume spill port Arpad M. Pataki, Thomas L. Szarvas 1995-08-29
5441027 Individual timing and injection fuel metering system David L. Buchanon, Lester L. Peters, Yul J. Tarr 1995-08-15
5419492 Force balanced electronically controlled fuel injector Gary L. Gant, George L. Muntean, O. Eddie Sturman, Dennis A. Wilber, Charles R. Kelso 1995-05-30
5404855 Variable displacement high pressure pump for fuel injection systems Bai Mao Yen, Lester L. Peters, Bryan W. Swank 1995-04-11
5353766 Distributor for a high pressure fuel system Lester L. Peters, Bai Mao Yen 1994-10-11
5329908 Compressed natural gas injection system for gaseous fueled engines Yul J. Tarr 1994-07-19
5301875 Force balanced electronically controlled fuel injector Cary L. Gant, George L. Muntean, O. Eddie Sturman, Dennis A. Wilber, Charles R. Kelso 1994-04-12
5094397 Unit fuel injector with injection chamber spill valve Lester L. Peters 1992-03-10
5076240 Articulated open nozzle high pressure unit fuel injector 1991-12-31
5076236 Fuel cutoff for better transient control Robert C. U. Yu 1991-12-31
5042445 Electronic controlled fuel supply system for high pressure injector Lester L. Peters, Edward D. Smith 1991-08-27
5033442 Fuel injector with multiple variable timing George L. Muntean 1991-07-23
5029568 Injection rate control injector 1991-07-09