DR

Duurt Renkema

Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
Overall (All Time): #1,889,742 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11142705 Process for preparing a base oil having a reduced cloud point Diederik Mattheus Antonius De Jonge, Edward Julius Creyghton, Eduard Philip Kieffer 2021-10-12
8608939 Process for removing asphaltenic particles Johannes Leendert Willem Cornelis Den Boestert, Marco Jordi In Het Veld 2013-12-17