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Hendrik Dirkzwager

Shell Oil Compny: 17 patents #148 of 4,423Top 4%
Overall (All Time): #274,298 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
10184076 Internal olefin sulfonate composition Julian Richard Barnes, James Laurel Buechele, Willem Johan Louis Genuit, Jeremiah Michael Purcell, Catherine Semien +1 more 2019-01-22
10030194 Method for enhanced hydrocarbon recovery Julian Richard Barnes, James Laurel Buechele, Robert Hardy Ellison, Johan Paul Smit 2018-07-24
10000688 Composition and method for enhanced hydrocarbon recovery Julian Richard Barnes, Robert Moene, Reinaldo C. Navarrete, Kirk Herbert Raney 2018-06-19
9688621 Process for preparing an internal olefin sulfonate Julian Richard Barnes, Robert Moene, Jasper Roelf Smit 2017-06-27
9284481 Method and composition for enhanced oil recovery Julian Richard Barnes, Quoc An On, Johan Paul Smit, Jasper Roelf Smit 2016-03-15
9221750 Process for preparing an internal olefin sulfonate Julian Richard Barnes, Robert Moene 2015-12-29
7718039 Process for reactive distillation of a carboxylic acid Leonardus Petrus, Pablo Poveda-Martinez 2010-05-18
7335802 Methods of preparing branched aliphatic alcohols Paul Marie Ayoub, Brendan Dermot Murray, Steve Sumrow 2008-02-26
7282474 Process for the preparation of detergents Joannes Ignatius Geijsel 2007-10-16
7227045 Process for the preparation of linear olefins and use thereof to prepare linear alcohols Joachim Ansorge, Joannes Ignatius Geijsel, Abdul Razak Mohamad Ali, Timothy Michael Nisbet, Laurent Alain Fenouil 2007-06-05
7105706 Process for the preparation of an alkoxylated alcohol composition Laurent Alain Fenouil, Rendert Jan WIERSMA 2006-09-12
6861450 Process for the preparation of a highly linear alcohol composition Laurent Alain Fenouil, Joannes Ignatius Geijsel, Arend Hoek, Frederik Hendrik Van Der Steen 2005-03-01
6770191 Process for the preparation of linear olefins and use thereof to prepare linear alcohols Joachim Ansorge, Joannes Ignatius Geijsel, Abdul Razak Mohamad Ali, Timothy Michael Nisbet, Laurent Alain Fenouil 2004-08-03
6657092 Process for the preparation of a highly linear alcohol composition Laurent Alain Fenouil, Joannes Ignatius Geijsel, Arend Hoek, Frederik Hendrik Van Der Steen 2003-12-02
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