WD

Willem Derks

SU Shell Usa: 3 patents #19 of 307Top 7%
Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
Overall (All Time): #906,615 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12270000 Recovery of aliphatic hydrocarbons Jean-Paul Lange, Kai Fischer, Guus VAN ROSSUM, Timothé Johannes Olthof, Hendrik Stichter 2025-04-08
11920094 Method of pretreating and converting hydrocarbons 2024-03-05
11891574 Recovery of aliphatic hydrocarbons Jean-Paul Lange, Luis Alberto Grau Lisnier, Kai Fischer 2024-02-06
6580008 Catalytic process for producing an alkylene glycol with reactor-output recycle Eugene Marie Godfried Andre Van Kruchten 2003-06-17
6365761 Process for preparing alkylene oxide Hendrik Dirkzwager, Alexander Jan Van Der Veen, Rutger Johannes Franciscus Wermeling 2002-04-02