RT

Richard H. Tietjen

EA E.I. Du Pont De Nemours And: 3 patents #2,229 of 8,010Top 30%
📍 Jeannette, PA: #26 of 85 inventorsTop 35%
🗺 Pennsylvania: #23,606 of 74,527 inventorsTop 35%
Overall (All Time): #1,650,430 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5400945 Process for explosively bonding metals Oswald Robert Bergmann, Vinci Martinez Felix, Walter John Simmons 1995-03-28
5323955 Explosively bonding metal composite Oswald Robert Bergmann, Vinci Martinez Felix, Walter John Simmons 1994-06-28
5226579 Process for explosively bonding metals Oswald Robert Bergmann, Vinci Martinez Felix, Walter John Simmons 1993-07-13