DH

Douglas G. Hunter

BO Borgwarner: 7 patents #139 of 1,600Top 9%
SA Slw Automotive: 4 patents #1 of 6Top 20%
Overall (All Time): #406,880 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11635076 Variable displacement vane pump with improved pressure control and range Dennis Koenig, Fuzheng Hu, Matthew J. Jannausch 2023-04-25
8961148 Unified variable displacement oil pump and vacuum pump Dennis Koenig 2015-02-24
8672658 Vane pump with improved rotor and vane extension ring 2014-03-18
8512006 Hydraulic pump with variable flow and pressure and improved open-loop electric control 2013-08-20
8430645 Two stage pressure regulation system for variable displacement hydraulic pumps Matthew J. Jannausch 2013-04-30
7726948 Hydraulic pump with variable flow and variable pressure and electric control Matthew J. Jannausch 2010-06-01
7674095 Variable displacement vane pump with variable target regulator Thomas Haase 2010-03-09
7396214 Variable displacement pump and control therefor Dennis Koenig 2008-07-08
7018178 Variable displacement pump and control therefore for supplying lubricant to an engine Dennis Koenig 2006-03-28
6896489 Variable displacement vane pump with variable target regulator Albin J. Niemiec 2005-05-24
6790013 Variable displacement vane pump with variable target regulator Albin J. Niemiec 2004-09-14
6186750 Oil pump control valve spool with pilot pressure relief valve 2001-02-13