DU

David R. Usher

📍 Chesterfield, MO: #2,561 of 6,461 inventorsTop 40%
🗺 Missouri: #8,863 of 23,789 inventorsTop 40%
Overall (All Time): #2,312,519 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5161740 Pop jet fountain Robert L. Kuykendal, Ronald S. Delchmann 1992-11-10
5160086 Lighted laminar flow nozzle Robert L. Kuykendal, Ronald S. Deichmann 1992-11-03