DL

Douglas L. Lumbra

IBM: 3 patents #26,272 of 70,183Top 40%
📍 Enosburg Falls, VT: #22 of 81 inventorsTop 30%
🗺 Vermont: #1,707 of 4,968 inventorsTop 35%
Overall (All Time): #1,646,984 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5508883 Air mixer cool plate Mohammed S. Shaikh 1996-04-16
4714953 Welded wire cooling Marvin L. Buller, Douglas W. Phelps, Jr., Sigvart J. Samuelsen, William Ward 1987-12-22
4417120 Percussive arc welding Douglas W. Phelps, Jr., Sigvart J. Samuelsen, William Ward 1983-11-22