Inventor
BILLENSTEIN SIEGFRIED
DE16 patents
⚠️ This page may combine multiple inventors who share the name “BILLENSTEIN SIEGFRIED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST AG
15 patentsUS4668439AMay 26, 1987
Process for the preparation of fatty acid esters of short-chain alcohols
HOECHST AG45 citations86
US4351737ASep 28, 1982
Fabric softener concentrate
HOECHST AG26 citations81
US4209456AJun 24, 1980
Fluorine-containing alkyl-sulfato-betaines and processes for their manufacture
HOECHST AG20 citations80
US4474682AOct 2, 1984
Petroleum emulsion-breakers containing nitrogen, and their use
HOECHST AG21 citations79
US4431565AFeb 14, 1984
Surface-active compounds, a process for their preparation and their use
HOECHST AG23 citations78
US4439331AMar 27, 1984
Textile softener
HOECHST AG7 citations73
US4286960ASep 1, 1981
Dyestuff compositions containing acylated alkoxylates of polyhydric aliphatic alcohols
HOECHST AG13 citations73
US4465817AAug 14, 1984
Modified etherified phenol/aldehyde condensation products and their use for breaking petroleum emulsions
HOECHST AG10 citations72
US4234509ANov 18, 1980
Process for the manufacture of fatty acid nitriles and glycerol from glycerides, especially from natural fats and oils
HOECHST AG14 citations71
US4294990AOct 13, 1981
Alkyl-polyglycol mixed formals as fiber preparation agents
HOECHST AG4 citations62
US4261839AApr 14, 1981
Tertiary butyl ethers as fiber preparation agents
HOECHST AG3 citations62
US4515723AMay 7, 1985
Quaternary N-alkyl-N,N',N'-polyoxyalkyl-α,ω-diamino-alkylene fatty acid esters, and their use
HOECHST AG3 citations60
US4321052AMar 23, 1982
Use of alkylpolyglycol-tert.-butyl ether as bleaching auxiliary and bleaching baths containing this agent
HOECHST AG4 citations59
US4147743AApr 3, 1979
Ampholytic, fluorine-containing esters of phosphorous acid
HOECHST AG3 citations59
US4992595AFeb 12, 1991
Poly(alkoxy ether) mixed formals
HOECHST AG1 citations51