JH

John H. Holmquest

📍 Watertown, SD: #19 of 83 inventorsTop 25%
🗺 South Dakota: #678 of 2,308 inventorsTop 30%
Overall (All Time): #2,273,953 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5679432 Multi-layer laminate structure John P. Devine 1997-10-21
5549418 Expanded polystyrene lightweight fill John P. Devine 1996-08-27