Inventor · disambiguated record
Rudiger Erckel
Also filed as: ECKES HELMUT · ERCKEL RUDIGER · ERCKEL RUEDIGER · FRUHBEIS HORST
20 granted patents·188 citations·filing 1975–1985
95Inventor score
Files withHOECHST AG20
Top patents by PatentIndex Score
20 records- 0184US4169810AMixtures of optical brightenersHOECHST AG·Filed 1978·Granted Oct 2, 1979·25 cites·4 claims
- 0284US4142044A4-Benzoxazolyl-4'-oxadiazolyl stilbene optical brightenersHOECHST AG·Filed 1977·Granted Feb 27, 1979·13 cites·4 claims
- 0378US4282355AProcess for the manufacture of bis-benzoxazolyl-stilbene compoundsHOECHST AG·Filed 1980·Granted Aug 4, 1981·14 cites·1 claims
- 0476US4039531A4-Stilbenyl-1,2,3-triazoles, process for preparing them and their use as optical brightenersHOECHST AG·Filed 1975·Granted Aug 2, 1977·8 cites·4 claims
- 0575US4330427AMixtures of optical brightenersHOECHST AG·Filed 1980·Granted May 18, 1982·19 cites·7 claims
- 0675US4220760ADiamino-1,3,5-triazinylstilbene compounds and process for preparing sameHOECHST AG·Filed 1978·Granted Sep 2, 1980·8 cites·4 claims
- 0773US4219651ABenzimidazo-[1,2-a]-quinolinesHOECHST AG·Filed 1977·Granted Aug 26, 1980·7 cites·1 claims
- 0869US4578469ABenzo[de]pyrano[3,2-g]isoquinoline derivatives useful as dyestuffsHOECHST AG·Filed 1984·Granted Mar 25, 1986·9 cites·8 claims
- 0968US4323675ANovel stilbene compounds: process for their manufacture and their use as optical brightenersHOECHST AG·Filed 1980·Granted Apr 6, 1982·8 cites·5 claims
- 1067US4556432AProcess for hydrolyzing cellulose-containing material with gaseous hydrogen fluorideHOECHST AG·Filed 1985·Granted Dec 3, 1985·18 cites·14 claims
- 1167US4336155AMixtures of optical brightenersHOECHST AG·Filed 1980·Granted Jun 22, 1982·14 cites·5 claims
- 1267US4197401AStilbenes, process for the manufacture thereof and the use thereof as optical brightenersHOECHST AG·Filed 1978·Granted Apr 8, 1980·5 cites·3 claims
- 1350US4363744AMixtures of optical brighteners and their use for the optical brighteningHOECHST AG·Filed 1981·Granted Dec 14, 1982·6 cites·4 claims
- 1447US4332943AProcess for the preparation of pyridineHOECHST AG·Filed 1981·Granted Jun 1, 1982·2 cites·4 claims
- 1546US4129412ABrightener mixtures and their useHOECHST AG·Filed 1977·Granted Dec 12, 1978·9 cites·3 claims
- 1643US4766207AProcess for the preparation of water-soluble polysaccharides, the saccharides thus obtainable, and their useHOECHST AG·Filed 1985·Granted Aug 23, 1988·17 cites·16 claims
- 1740US4310665ANovel stilbene compounds and process for the manufacture thereofHOECHST AG·Filed 1980·Granted Jan 12, 1982·1 cites·4 claims
- 1839US4589924AProcess for hydrolyzing cellulose-containing material with gaseous hydrogen fluorideHOECHST AG·Filed 1985·Granted May 20, 1986·4 cites·6 claims
- 1931US4231741AMixtures of optical brightenersHOECHST AG·Filed 1978·Granted Nov 4, 1980·1 cites·5 claims
- 2027US4556431AProcess for hydrolyzing cellulose-containing material with gaseous hydrogen fluorideHOECHST AG·Filed 1985·Granted Dec 3, 1985·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →