Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Douglas G. Hunter — 12 Patents

BOBorgwarner: 7 patents #174 of 1,733Top 15%
SASlw Automotive: 4 patents #1 of 6Top 20%
Shelby Charter Township, MI: #59 of 712 inventorsTop 9%
Michigan: #7,722 of 86,293 inventorsTop 9%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Douglas G. Hunter has been granted 12 US patents while listed as an inventor at Borgwarner. The first was granted in 2001 and the most recent in April 2023. Douglas G. Hunter ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Douglas G. Hunter in Shelby Charter Township, MI, US.

Patents per Year

Patents granted per year, 2001 to 2023Bar chart with a peak of 2 patents in 2010.peak 22001: 1 patents20012004: 1 patents20042005: 1 patents20052006: 1 patents20062008: 1 patents20082010: 2 patents20102013: 2 patents20132014: 1 patents20142015: 1 patents20152023: 1 patents2023

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
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 $17,023,000
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 $18,829,000
7396214 Variable displacement pump and control therefor Dennis Koenig 2008-07-08 $15,738,000
7018178 Variable displacement pump and control therefore for supplying lubricant to an engine Dennis Koenig 2006-03-28 $17,254,000
6896489 Variable displacement vane pump with variable target regulator Albin J. Niemiec 2005-05-24 $5,508,000
6790013 Variable displacement vane pump with variable target regulator Albin J. Niemiec 2004-09-14 $1,970,000
6186750 Oil pump control valve spool with pilot pressure relief valve 2001-02-13 $3,299,000