Inventor · disambiguated record
Siegfried Billenstein
Also filed as: BILLENSTEIN SIEGFRIED
16 granted patents·202 citations·filing 1977–1990
94Inventor score
Top patents by PatentIndex Score
16 records- 0186US4668439AProcess for the preparation of fatty acid esters of short-chain alcoholsHOECHST AG·Filed 1985·Granted May 26, 1987·45 cites·9 claims
- 0279US4234509AProcess for the manufacture of fatty acid nitriles and glycerol from glycerides, especially from natural fats and oilsHOECHST AG·Filed 1979·Granted Nov 18, 1980·14 cites·9 claims
- 0372US4474682APetroleum emulsion-breakers containing nitrogen, and their useHOECHST AG·Filed 1983·Granted Oct 2, 1984·21 cites·11 claims
- 0470US4286960ADyestuff compositions containing acylated alkoxylates of polyhydric aliphatic alcoholsHOECHST AG·Filed 1980·Granted Sep 1, 1981·13 cites·13 claims
- 0568US4351737AFabric softener concentrateHOECHST AG·Filed 1981·Granted Sep 28, 1982·26 cites·2 claims
- 0664US4209456AFluorine-containing alkyl-sulfato-betaines and processes for their manufactureHOECHST AG·Filed 1978·Granted Jun 24, 1980·20 cites·9 claims
- 0763US4431565ASurface-active compounds, a process for their preparation and their useHOECHST AG·Filed 1982·Granted Feb 14, 1984·23 cites·13 claims
- 0852US4147743AAmpholytic, fluorine-containing esters of phosphorous acidHOECHST AG·Filed 1977·Granted Apr 3, 1979·3 cites·1 claims
- 0950US4439331ATextile softenerHOECHST AG·Filed 1982·Granted Mar 27, 1984·7 cites·8 claims
- 1048US5012013AProcess for the purification of alkylene oxide adductsWIMMER IGNAZ·Filed 1990·Granted Apr 30, 1991·5 cites·9 claims
- 1145US4294990AAlkyl-polyglycol mixed formals as fiber preparation agentsHOECHST AG·Filed 1979·Granted Oct 13, 1981·4 cites·2 claims
- 1244US4465817AModified etherified phenol/aldehyde condensation products and their use for breaking petroleum emulsionsHOECHST AG·Filed 1983·Granted Aug 14, 1984·10 cites·6 claims
- 1338US4992595APoly(alkoxy ether) mixed formalsHOECHST AG·Filed 1988·Granted Feb 12, 1991·1 cites·1 claims
- 1438US4261839ATertiary butyl ethers as fiber preparation agentsHOECHST AG·Filed 1979·Granted Apr 14, 1981·3 cites·1 claims
- 1534US4321052AUse of alkylpolyglycol-tert.-butyl ether as bleaching auxiliary and bleaching baths containing this agentHOECHST AG·Filed 1981·Granted Mar 23, 1982·4 cites·3 claims
- 1632US4515723AQuaternary N-alkyl-N,N',N'-polyoxyalkyl-α,ω-diamino-alkylene fatty acid esters, and their useHOECHST AG·Filed 1982·Granted May 7, 1985·3 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →