FD

Francis H. Dulin

CP Champion Spark Plug: 1 patents #18 of 71Top 30%
CT Cooper Technologies: 1 patents #306 of 757Top 45%
📍 Rochester Hills, MI: #742 of 1,754 inventorsTop 45%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,306,613 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5082806 Semi-conducting ceramic — 1992-01-21
5028346 Semi-conducting ceramic — 1991-07-02