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USPTO Patent Rankings Data through Sept 30, 2025
RB

Robertus G. Berenbak

DBDsm Resins B.V.: 1 patents #1 of 2Top 50%
Hook of Holland, NL: #1 of 1 inventorsTop 100%
Overall (1989): #34,110 of 140,708Top 25%
1 Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4839438 Crystalline unsaturated polyester and the preparation thereof Johannes T. Evers 1989-06-13