DV

Don M. Vandervelde

📍 Gig Harbor, WA: #2 of 18 inventorsTop 15%
🗺 Washington: #611 of 2,427 inventorsTop 30%
Overall (1997): #157,412 of 185,788Top 85%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5632896 Method for treating sewage and other liquids Glenn Helm 1997-05-27