DH

Donald Haefner

EA Eaton: 1 patents #38 of 245Top 20%
📍 Troy, MI: #63 of 223 inventorsTop 30%
🗺 Michigan: #1,566 of 6,092 inventorsTop 30%
Overall (2004): #232,385 of 270,089Top 90%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6694934 Variable valve actuator for internal combustion engine David M. Preston, David H. Scharnweber 2004-02-24