DD

Darrel J. DesRochers

📍 Vancouver, WA: #16 of 95 inventorsTop 20%
🗺 Washington: #611 of 2,427 inventorsTop 30%
Overall (1997): #164,078 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5653423 Knife gate valve with mechanically retained gate seat Calvin Young, David L. Gambetta, Jon A. Hansen, Nolan D. King, Richard A. Sutherland 1997-08-05