Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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William James Kumpf — 7 Patents

Delphi Technologies: 4 patents #801 of 4,124Top 20%
General Motors: 1 patents #9,441 of 18,328Top 55%
Lockport, NY: #34 of 276 inventorsTop 15%
New York: #20,477 of 115,490 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
William James Kumpf has been granted 7 US patents while listed as an inventor at Delphi Technologies. The first was granted in 1996 and the most recent in February 2007. William James Kumpf ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list William James Kumpf in Lockport, NY, US.

Patents per Year

Patents granted per year, 1996 to 2007Bar chart with a peak of 2 patents in 1996.peak 21996: 2 patents19962005: 2 patents20052006: 2 patents20062007: 1 patents2007

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7178450 Sealing system for a compressor James Baker, Edward Wolfe, IV 2007-02-20
7093451 Blowoff valve assembly with integrated pressure switch Xiaoxia Mu, Taylor R. Eckstein, Jr., Prasad S. Kadle 2006-08-22
7036329 Lowering of refrigerant emissions by cycling of a variable displacement compressor S. Ahmed, Edward Wolfe, IV, Prasad S. Kadle 2006-05-02
6968706 HVAC system with refrigerant venting Prasad S. Kadle, James Baker, Mahmoud Ghodbane, Lawrence Scherer 2005-11-29
6907748 HVAC system with refrigerant venting Prasad S. Kadle, James Baker, Mahmoud Ghodbane, Lawrence Scherer 2005-06-21 $7,942,000
5546700 Fluid level control system 1996-08-20
5509346 Variable displacement compressor with simplified torque restraint 1996-04-23