DH

David W. Hagan

UC Union Carbide: 2 patents #417 of 1,402Top 30%
📍 Vancouver, WA: #761 of 1,812 inventorsTop 45%
🗺 Washington: #35,300 of 76,902 inventorsTop 50%
Overall (All Time): #2,328,574 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4826668 Process for the production of ultra high purity polycrystalline silicon William C. Breneman, Robert N. Flagella, Jon M. Gaston 1989-05-02
4805556 Reactor system and method for forming uniformly large-diameter polycrystalline rods by the pyrolysis of silane William D. Burke, Thomas R. Thoman, McRea B. Willmert 1989-02-21