Inventor
RYS PAUL
CH10 patents
⚠️ This page may combine multiple inventors who share the name “RYS PAUL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIBA GEIGY CORP
5 patentsUS4929771AMay 29, 1990
Process for the preparation of alkyl-substituted phenols or naphthols
CIBA GEIGY CORP6 citations55
US5041634AAug 20, 1991
Process for the preparation of carboxylated aromatic hydroxy compounds
CIBA GEIGY CORP1 citations50
US4861920AAug 29, 1989
Process for the preparation of 2,6-dihydroxynaphthalene
CIBA GEIGY CORP1 citations49
US4042635AAug 16, 1977
Spiro compounds
CIBA GEIGY CORP0 citations47
US3950403AApr 13, 1976
Spiro compounds
CIBA GEIGY CORP1 citations47
CIBA GEIGY AG
3 patentsUS4950306AAug 21, 1990
Dyeing and printing of cellulosic fibre materials with vat dyes with mono- or di-hydroxyacetone as reducing agent
CIBA GEIGY AG23 citations90
US4773973ASep 27, 1988
Process for the production of polycrystalline silicon coatings by electrolytic deposition of silicon
CIBA GEIGY AG4 citations58
US4759830AJul 26, 1988
Process for the production of polycrystalline silicon coatings by electrolytic deposition of silicon
CIBA GEIGY AG3 citations58