DV

Dirk Verzijl

IB Internationale Otrool Maatschappij Octropa B.V.: 2 patents #8 of 132Top 7%
LB Lever Brothers: 1 patents #333 of 819Top 45%
UB Unilever Patent Holdings B.V.: 1 patents #167 of 552Top 35%
📍 Barendrecht, NL: #14 of 62 inventorsTop 25%
Overall (All Time): #1,297,509 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5087599 Nickel/silica catalysts and their preparation Martha J. P. Botman, Peter Nootenboom, Johannes C. Oudejans 1992-02-11
4946821 Process for the preparation of a hydrogenation catalyst Johannes C. Oudejans 1990-08-07
4665048 Catalyst suitable for hydrotreating Willem A. Van Leeuwen, Eduard K. Poels, Leendert H. Staal 1987-05-12
4490480 Nickel catalyst on alumina support Cornelis Martinus Lok, Jacob van Dijk 1984-12-25