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Hendrik Dirkzwager

Shell Oil Compny: 3 patents #2 of 156Top 2%
Overall (2002): #29,081 of 266,432Top 15%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6437207 Process for the preparation of styrenes Marinus Van Zwienen 2002-08-20
6420620 Process for preparing styrenes Johan Hendrik De Bie, Robertus Raymundus Maria Overtoom, Marinus Van Zwienen 2002-07-16
6365761 Process for preparing alkylene oxide Willem Derks, Alexander Jan Van Der Veen, Rutger Johannes Franciscus Wermeling 2002-04-02