HD

Hendricus A. Dirkse

Shell Oil Compny: 4 patents #22 of 337Top 7%
Overall (1989): #5,119 of 140,708Top 4%
4
Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4869622 Feed hopper design James A. Salter, James J. McCusker, Charles M. Arbore, Rudi Everts, Gunter K. Eckstein +2 more 1989-09-26
4844663 Feed line-ultrasonic activated gas injection James A. Salter, Thomas S. Dewitz, Johannnes W. Van Der Meer 1989-07-04
4834588 Feed line-pulsed gas injection James A. Salter, Thomas S. Dewitz, Johannes W. van der Meer 1989-05-30
4830545 Feed line design James A. Salter, Thomas S. Dewitz, Andrew M. Scott, Johannes W. van der Meer 1989-05-16