Inventor
WILHELM VOLKER
DE8 patents
⚠️ This page may combine multiple inventors who share the name “WILHELM VOLKER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
5 patentsUS5167708ADec 1, 1992
Process for the preparation of pigments containing Cr2 O3
BAYER AG23 citations89
US4450012AMay 22, 1984
Flocculation-resistant, mixed phase pigments having a rutile structure, process for their preparation, and their use
BAYER AG22 citations80
US4919726AApr 24, 1990
Process for the production of rutile mixed-phase pigments
BAYER AG6 citations72
US4919723AApr 24, 1990
Rutile mixed phase pigments with improved coloristic properties
BAYER AG6 citations72
US4985078AJan 15, 1991
Thermostable zinc ferrite color pigments containing 0.05-0.5 wt % lithium, a process for their preparation and their use
BAYER AG9 citations71