Inventor · disambiguated record
Volker Eckhardt
Also filed as: ECKHARDT VOLKER
29 granted patents·286 citations·filing 1986–2003
96Inventor score
Top patents by PatentIndex Score
29 records- 0188US7259257B2Process for producing particulate, water-soluble cellulose derivatives using a superheated gas mixture containing steamWOLFF WALSRODE AG·Filed 2001·Granted Aug 21, 2007·34 cites·8 claims
- 0283US4801677AThermotropic aromatic polyester with high thermal stabilityBAYER AG·Filed 1987·Granted Jan 31, 1989·30 cites·7 claims
- 0382US5021543AProcess for the production of bifunctional OH-terminated polyphenylene oxides with dipolar aprotic solventBAYER AG·Filed 1989·Granted Jun 4, 1991·29 cites·1 claims
- 0480US4912193AThermotropic aromatic polyester based on p-hydroxy benzoic acid, 4,4'-dihydroxy diphenyl, terephthalic acid, and isophthalic acidBAYER AG·Filed 1988·Granted Mar 27, 1990·24 cites·6 claims
- 0577US5105004AAromatic ethersBAYER AG·Filed 1990·Granted Apr 14, 1992·23 cites·2 claims
- 0671US4985532AThermotropic polyesters, a process for their production and their use for the production of moldings, filaments and filmsBAYER AG·Filed 1989·Granted Jan 15, 1991·17 cites·5 claims
- 0769US4861857AThermotropic polyesterimide from N-carboxyalkylene trimellitimide having excellent processibility, a process for their production and their use for the production of moldings, filaments, fibers and filmsBAYER AG·Filed 1988·Granted Aug 29, 1989·16 cites·8 claims
- 0868US5037939AThermotropic, fully aromatic polyesters prepared by polycondensation of aromatic diphenols and aromatic carboxylic acidsBAYER AG·Filed 1990·Granted Aug 6, 1991·15 cites·7 claims
- 0966US5053477AProcess for the production of aromatic polyether ketonesBAYER AG·Filed 1990·Granted Oct 1, 1991·16 cites·4 claims
- 1060US4954604AProcess for the production of aromatic polyether ketonesBAYER AG·Filed 1988·Granted Sep 4, 1990·11 cites·4 claims
- 1155US7868166B2Continuous process for the production and/or workup of polysaccharide derivativesDOW GLOBAL TECHNOLOGIES INC·Filed 2003·Granted Jan 11, 2011·2 cites·9 claims
- 1255US4999414AProcess for the production of aromatic polyether ketonesBAYER AG·Filed 1989·Granted Mar 12, 1991·9 cites·4 claims
- 1353US4954606ASolid phase post polymerization condensation of thermotropic polyester imidesBAYER AG·Filed 1988·Granted Sep 4, 1990·8 cites·1 claims
- 1453US4835243AThermotropic aromatic polymers with high elongation at break, processes for their preparation and their use for the production of moulded articles, filaments, fibres and filmsECKHARDT VOLKER·Filed 1988·Granted May 30, 1989·10 cites·7 claims
- 1552US4716252AProcess for the preparation of bis-hydroxyphenyl-n-alkanes, new bis-hydroxyphenyl-n-alkanes and new alkanedionesBAYER AG·Filed 1986·Granted Dec 29, 1987·4 cites·5 claims
- 1648US4970286AThermotropic, fully aromatic polyesters having a low processing temperature, a process for their production and their use for the production of moldings, filaments, fibers and filmsBAYER AG·Filed 1989·Granted Nov 13, 1990·6 cites·8 claims
- 1748US4948863AThermotropic polyester imide from N-(3-hydroxy phenyl) trimellitic acid imideBAYER AG·Filed 1989·Granted Aug 14, 1990·6 cites·11 claims
- 1848US4667011AThermotropic aromatic polyesters having high mechanical properties and good processability, a process for their preparation, and their use for the production of mouldings, filaments, fibres and filmsBAYER AG·Filed 1986·Granted May 19, 1987·7 cites·10 claims
- 1941US4931534AThermotropic aromatic polyesters, a process for their production and their use for the production of moldings, filaments, fibers and filmsBAYER AG·Filed 1989·Granted Jun 5, 1990·6 cites·7 claims
- 2040US4739058ATetra-(hydroxyaryl)-bis-quinoxalines and preparation thereofBAYER AG·Filed 1986·Granted Apr 19, 1988·3 cites·13 claims
- 2139US5084550ACopolycarbonate from mixture of polyarylene diolBAYER AG·Filed 1990·Granted Jan 28, 1992·4 cites·3 claims
- 2239US5068300ABifunctional stilbene compounds containing at least one z-configurated stilbene group, process for their preparation and their use for the preparation of polymersBAYER AG·Filed 1990·Granted Nov 26, 1991·3 cites·1 claims
- 2334US5136013AProcess for the production of low-melting polymers containing at least one z-configured stilbene groupBAYER AG·Filed 1990·Granted Aug 4, 1992·2 cites·7 claims
- 2431US4797467AThermoplastic polycarbonate branched with tetra-hydroxyaryl-bis-quinoxalineBAYER AG·Filed 1987·Granted Jan 10, 1989·0 cites·2 claims
- 2530US4780525AThermotropic, fully aromatic polyesters with excellent figidity and toughness, a process for their preparation and their use for the production of shaped articles, filaments, fibres and filmsBAYER AG·Filed 1986·Granted Oct 25, 1988·0 cites·9 claims
- 2629US4806619AThermotropic aromatic polyesters having a high deflection temperature under load and excellent mechanical properties, a process for their preparation and their use for the production of moldings, filaments, fibres and filmsBAYER AG·Filed 1986·Granted Feb 21, 1989·0 cites·8 claims
- 2728US5134219AStiff-chain polyheterocycles having improved solubility, a process for their production and their useBAYER AG·Filed 1990·Granted Jul 28, 1992·0 cites·1 claims
- 2827US4912180AProcess for the preparation of polyarylene sulphidesBAYER AG·Filed 1988·Granted Mar 27, 1990·1 cites·10 claims
- 2926US4906712AProcess for the preparation of polyarylene sulphidesBAYER AG·Filed 1988·Granted Mar 6, 1990·0 cites·12 claims
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