Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Mark K. Wolfenden — 4 Patents

Delphi Technologies: 4 patents #801 of 4,124Top 20%
Burton, MI: #16 of 83 inventorsTop 20%
Michigan: #22,248 of 86,293 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Mark K. Wolfenden has been granted 4 US patents while listed as an inventor at Delphi Technologies. The first was granted in 2001 and the most recent in May 2006. Mark K. Wolfenden ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Mark K. Wolfenden in Burton, MI, US.

Patents per Year

Patents granted per year, 2001 to 2006Bar chart with a peak of 1 patents in 2001.peak 12001: 1 patents20012003: 1 patents20032005: 1 patents20052006: 1 patents2006

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7047997 Fuel tank vent valve Sharon Elizabeth Beyer, Ulf Sawert, Chris Witherspoon, Robert A. Roth, Thomas J. Mott +2 more 2006-05-23
6951131 Fuel level indication assembly Ulf Sawert, Hugh Ireland, Michael Lutton, Daniel A. Crawford 2005-10-04 $21,183,000
6517327 Fuel pump isolation assembly Sharon Elizabeth Beyer, Dale Richard Jones, Matthew Catlin, Mohammed Aslam 2003-02-11 $3,069,000
6230691 Secondary fuel pump assembly for a fuel tank Timothy F. Coha, Sharon Elizabeth Beyer, Ulf Sawert, Chris Begley, Dale Richard Jones 2001-05-15 $6,346,000