JB

Jan Boelen

Shell Oil Compny: 1 patents #2,223 of 4,423Top 55%
Overall (All Time): #3,890,645 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5068254 Process for the preparation of hydrocarbons Sytze A. Posthuma, Johannes Didericus De Graaf 1991-11-26