Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Mark C. Sellnau — 2 Patents in 2021

DLDelphi Technologies Ip Limited: 2 patents #3 of 50Top 6%
Bloomfield Hills, MI: #23 of 113 inventorsTop 25%
Michigan: #1,612 of 9,874 inventorsTop 20%
Overall (2021): #132,952 of 548,734Top 25%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11078867 Piston and bowl for gasoline direct injection compression ignition (GDCI) 2021-08-03
11060497 Cold start strategy and system for gasoline direct injection compression ignition engine Gregory T. Roth 2021-07-13