WV

Willem Van Vark

Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
Overall (All Time): #2,139,588 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7601320 System and methods for producing oil and/or gas Johan Jacobus Van Dorp, Michael Zvi Golombok, Michiel Jan Groeneveld, Douglas Charlton McCammon, Thomas Mikus +5 more 2009-10-13
7426959 Systems and methods for producing oil and/or gas Dean Chien Wang, Alexander Michiel Mollinger, Douglas Charlton McCammon, Raul Valdez, Johan Jacobus Van Dorp +5 more 2008-09-23