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David L. Speirs

WA Walbro: 2 patents #2 of 13Top 20%
📍 Cass City, MI: #1 of 3 inventorsTop 35%
🗺 Michigan: #950 of 6,958 inventorsTop 15%
Overall (2025): #131,094 of 469,880Top 30%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12421924 Fuel supply assembly with in-tank reservoir Bryan K. Gangler, Jacob R. Mikulak, Bradley J. Roche 2025-09-23
12385457 Method of controlling a fuel injector Jeffrey C. Hoppe, Duried F. Rabban, Bradley J. Roche 2025-08-12