FD

Frederik M. H. J. Duysings

Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
📍 Houston, TX: #8,651 of 21,073 inventorsTop 45%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,332,045 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4850001 Orifice blockage detection system David B. Baxter, Chandler H. Barkelew 1989-07-18
4750434 Mill/dryer gas temperature control James A. Salter, Thomas Schmidt, Rudi Everts, David S. Brown, Johannes W. van der Meer 1988-06-14