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Hubertus Wilhelmus Albertus Dries

Shell Oil Compny: 3 patents #24 of 205Top 15%
Overall (2003): #29,298 of 273,478Top 15%
3
Patents 2003

Issued Patents 2003

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6658988 Apparatus and process for removing solid particles from gases 2003-12-09
6596242 Reactor riser of a fluidized-bed catalytic cracking plant 2003-07-22
6569317 Trickle valve Hendricus A. Dirkse, Willem Rozema 2003-05-27