DB

Dirk M. Brouwer

Shell Oil Compny: 1 patents #2,223 of 4,423Top 55%
Overall (All Time): #2,267,450 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5596046 Crosslinked resins containing thermally stable sulfonic acid groups Elizabeth M. van de Vondervoort 1997-01-21
4728695 Crosslinked resins containing thermally stable sulfonic acid groups Elizabeth M. van de Vondervoort 1988-03-01