Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Carelton Williams — 2 Patents

Delphi Technologies: 1 patents #2,130 of 4,124Top 55%
Oak Park, MI: #73 of 200 inventorsTop 40%
Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,189,879 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6722187 Enhanced vacuum decay diagnostic and integration with purge function Malcolm James Grieve, Stephen F. Majkowski, Kenneth M. Simpson, Michael J. Steckler 2004-04-20
6334355 Enhanced vacuum decay diagnostic and integration with purge function Malcolm James Grieve, Stephen F. Majkowski, Kenneth M. Simpson, Michael J. Steckler 2002-01-01