JD

John M. DeFriese

📍 Chesterfield, MO: #2,561 of 6,461 inventorsTop 40%
🗺 Missouri: #8,863 of 23,789 inventorsTop 40%
Overall (All Time): #2,235,005 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6027596 Infinite universal sealing assembly David Gassel 2000-02-22
5603801 Infinite universal sealing assembly David Gassel 1997-02-18