Inventor
PRENGEL CONSTANZE
NL5 patents
⚠️ This page may combine multiple inventors who share the name “PRENGEL CONSTANZE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MERCK PATENT GMBH
4 patentsUS5223360AJun 29, 1993
Materials coated with plate-like pigments
MERCK PATENT GMBH119 citations95
US5302199AApr 12, 1994
Interference pigments
MERCK PATENT GMBH26 citations91
US5354374AOct 11, 1994
Iron oxide pigments
MERCK PATENT GMBH26 citations90
US5322561AJun 21, 1994
Conductive flaky pigments
MERCK PATENT GMBH17 citations72