Inventor · disambiguated record
Karl-Heinz Etzbach
Also filed as: ETZBACH KARL H · ETZBACH KARL-HEINZ · ETZBACH KARL-HEINZ DR
151 granted patents·2,519 citations·filing 1982–2006
99Inventor score
Top patents by PatentIndex Score
151 records- 0198US5719288APyridone dyesBASF AG·Filed 1994·Granted Feb 17, 1998·110 cites·10 claims
- 0296US5798147AProcess for coating and printing substratesBASF AG·Filed 1995·Granted Aug 25, 1998·119 cites·15 claims
- 0396US4843153AAzo dyes containing thienothiophene radicals as radicals of the diazo componentBASF AG·Filed 1987·Granted Jun 27, 1989·58 cites·6 claims
- 0496US4631328APolymers containing mesogenic groups and dye radicals in the side chainsBASF AG·Filed 1984·Granted Dec 23, 1986·93 cites·6 claims
- 0595US5780629APolymerizable, chiral compounds and their useBASF AG·Filed 1994·Granted Jul 14, 1998·114 cites·7 claims
- 0695US5162545AMalonic acid dyes and polycondensation products thereofBASF AG·Filed 1990·Granted Nov 10, 1992·59 cites·3 claims
- 0795US4943617ALiquid crystalline copolymerBASF AG·Filed 1987·Granted Jul 24, 1990·57 cites·11 claims
- 0894US5833880APolymerizable liquid-crystalline compoundsBASF AG·Filed 1995·Granted Nov 10, 1998·142 cites·16 claims
- 0993US4667020AAromatic disazo dyes and liquid-crystalline materials containing these dyesBASF AG·Filed 1985·Granted May 19, 1987·40 cites·6 claims
- 1092US6136225APolymerizable liquid-crystalline compoundsBASF AG·Filed 1996·Granted Oct 24, 2000·104 cites·19 claims
- 1192US5922481AElectroluminescent arrangementBASF AG·Filed 1996·Granted Jul 13, 1999·88 cites·12 claims
- 1292US5518824AElectroluminescent arrangementBASF AG·Filed 1994·Granted May 21, 1996·120 cites·20 claims
- 1391US5744057APolymerizable, chiral compounds, and use thereofBASF AKTIENGESELLSHAFT·Filed 1996·Granted Apr 28, 1998·56 cites·17 claims
- 1490US5738806AThienothienylazoanilines in nonlinear opticsBASF AG·Filed 1994·Granted Apr 14, 1998·34 cites·10 claims
- 1590US4556622AElectrophotographic recording material whose photoconductor layer contains a halogenated perylene dye sensitizerBASF AG·Filed 1984·Granted Dec 3, 1985·20 cites·13 claims
- 1689US5306815AAzo dyes with a coupling component of the quinoline seriesBASF AG·Filed 1992·Granted Apr 26, 1994·36 cites·4 claims
- 1788US6136251AProcess for producing pigment particles of defined shape and sizeBASF AG·Filed 1997·Granted Oct 24, 2000·30 cites·8 claims
- 1888US5696243ADiphenylamine compounds, polymers prepared therefrom and non-linear optics devices containing the sameBASF AG·Filed 1994·Granted Dec 9, 1997·28 cites·8 claims
- 1987US6048968ACationic azo dyes based on aminobenzoic acidBASF AG·Filed 1999·Granted Apr 11, 2000·30 cites·10 claims
- 2087US4702945AOptical recording mediumBASF AG·Filed 1985·Granted Oct 27, 1987·36 cites·5 claims
- 2186US5783649APolymerizable azo dyes with a thiophene structureBASF AG·Filed 1996·Granted Jul 21, 1998·26 cites·11 claims
- 2286US4939118ATransfer of azo dyes having a pyridine coupling componentBASF AG·Filed 1989·Granted Jul 3, 1990·24 cites·2 claims
- 2384US5886242APolymerizable, chiral compounds and their useBASF AG·Filed 1998·Granted Mar 23, 1999·53 cites·7 claims
- 2483US6335462B1Polymerizable oligomesogenesBASF AG·Filed 1997·Granted Jan 1, 2002·23 cites·2 claims
- 2582US5580980AN-aminopyridone dyesBASF AG·Filed 1992·Granted Dec 3, 1996·16 cites·5 claims
- 2682US4533612AElectrophotographic recording materials containing special charge carrier-transporting compoundsBASF AG·Filed 1984·Granted Aug 6, 1985·22 cites·14 claims
- 2781US4994564AAzo dyes with a diazo component of the 3-amino thiophene series and a coupling component of the pyridine, pyridone or pyrazole seriesBASF AG·Filed 1988·Granted Feb 19, 1991·16 cites·4 claims
- 2879US5079365ATriazolopyridine dyes and thermal transfer of methine dyesBASF AG·Filed 1990·Granted Jan 7, 1992·39 cites·4 claims
- 2978US6152968AWater-soluble QuinacridonesBASF AG·Filed 1998·Granted Nov 28, 2000·27 cites·10 claims
- 3076US6099750AUse of organic compounds in the plastic columnar discotic liquid-crystal phase for transport of electric chargesSIEMENS AG·Filed 1996·Granted Aug 8, 2000·26 cites·14 claims
- 3176US5401612APolyesters containing nonlinear-optical chromophores, and the use thereofBASF AG·Filed 1994·Granted Mar 28, 1995·13 cites·4 claims
- 3275US5616678AAzo dyestuff- and urethane-containing polyadduct and its use in nonlinear opticsBASF AG·Filed 1994·Granted Apr 1, 1997·13 cites·12 claims
- 3375US5283326ADyes containing thiophene radicalsSANDOZ AG·Filed 1992·Granted Feb 1, 1994·14 cites·14 claims
- 3474US5151516APolymerizable perylene-3,4,9,10-tetracarbimidesBASF AG·Filed 1990·Granted Sep 29, 1992·29 cites·3 claims
- 3574US4880769ATransfer of catinic dyes in their deprotonated, electrically neutral formBASF AG·Filed 1987·Granted Nov 14, 1989·33 cites·4 claims
- 3673US5132438ABichromophoric methine and azamethine dyes and process for transferring themBASF AG·Filed 1991·Granted Jul 21, 1992·19 cites·6 claims
- 3772US5736068ATriphenylene compounds and preparation of discotic liquid crystalline crosslinked polymersBASF AG·Filed 1994·Granted Apr 7, 1998·19 cites·5 claims
- 3872US5549853ALinked azo dyesBASF AG·Filed 1994·Granted Aug 27, 1996·11 cites·3 claims
- 3972US5139997ATransfer of bichromophoric cyano-containing methine dyesBASF AG·Filed 1991·Granted Aug 18, 1992·17 cites·2 claims
- 4072US4865762APolymers which form liquid-crystalline phasesBASF AG·Filed 1987·Granted Sep 12, 1989·20 cites·1 claims
- 4172US4465857APhenylhydrazonesBASF AG·Filed 1982·Granted Aug 14, 1984·15 cites·13 claims
- 4271US5101035AMerocyanine-like thiazole dyes and thermal transfer thereofBASF AG·Filed 1990·Granted Mar 31, 1992·20 cites·3 claims
- 4370US6903197B2Azoxy dyes and copper complexes thereofBASF AG·Filed 2004·Granted Jun 7, 2005·6 cites·10 claims
- 4470US6616712B1Use of compositions containing bisazo compounds for detecting fissuresBASF AG·Filed 1999·Granted Sep 9, 2003·12 cites·12 claims
- 4570US5384378ACopolymers with non-linear optical properties and the use thereofBASF AG·Filed 1993·Granted Jan 24, 1995·34 cites·8 claims
- 4670US5332520ALiquid-crystalline polymers of virtually uniform molecular weightBASF AG·Filed 1992·Granted Jul 26, 1994·23 cites·7 claims
- 4770US5147845ATriazolopyridine dyes and thermal transfer of methine dyesBASF AG·Filed 1991·Granted Sep 15, 1992·13 cites·2 claims
- 4869US5389596ADye mixtures for dye transferBASF AG·Filed 1993·Granted Feb 14, 1995·10 cites·6 claims
- 4969US5214140ABichromophoric methine and azamethine dyes and process for transferring themBASF AG·Filed 1992·Granted May 25, 1993·10 cites·7 claims
- 5067US4837269A2-aminothiophene radical substituted by an electron withdrawing groupBASF AG·Filed 1987·Granted Jun 6, 1989·8 cites·24 claims
Showing the top 50 of 151 patent records by PatentIndex Score.
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