DH

David Alan Hopkins

TV The Valeron: 3 patents #5 of 35Top 15%
WE Westvaco: 3 patents #69 of 364Top 20%
📍 Troy, MI: #527 of 2,712 inventorsTop 20%
🗺 Michigan: #15,670 of 86,293 inventorsTop 20%
Overall (All Time): #896,261 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4547417 Core plug Richard E. DeMarco, Dennis I. Deegan 1985-10-15
4484715 Core plug Richard E. DeMarco, Dennis I. Deegan 1984-11-27
4460087 Core plug Richard E. DeMarco, Walter D. McVicar 1984-07-17
4352609 Face milling cutter 1982-10-05
4211510 Adjustable boring head 1980-07-08
4194860 Face milling cutter 1980-03-25