Volker Eckhardt
29Patents
7h-index
41Co-inventors
65Inventor score
Filing activity: May 7, 1986 → May 2, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4801677A | Thermotropic aromatic polyester with high thermal stability | Chemistry; Metallurgy | 22 | Expired |
| US7259257B2 | Process for producing particulate, water-soluble cellulose derivatives using a superheated gas mixture containing steam | Chemistry; Metallurgy | 18 | Expired |
| US4912193A | Thermotropic aromatic polyester based on p-hydroxy benzoic acid, 4,4'-dihydroxy diphenyl, terephthalic acid, and isophthalic acid | Chemistry; Metallurgy | 15 | Expired |
| US5021543A | Process for the production of bifunctional OH-terminated polyphenylene oxides with dipolar aprotic solvent | Chemistry; Metallurgy | 14 | Expired |
| US4861857A | Thermotropic polyesterimide from N-carboxyalkylene trimellitimide having excellent processibility, a process for their production and their use for the production of moldings, filaments, fibers and films | Chemistry; Metallurgy | 11 | Expired |
| US5037939A | Thermotropic, fully aromatic polyesters prepared by polycondensation of aromatic diphenols and aromatic carboxylic acids | Chemistry; Metallurgy | 9 | Expired |
| US5105004A | Aromatic ethers | Chemistry; Metallurgy | 8 | Expired |
| US4985532A | Thermotropic polyesters, a process for their production and their use for the production of moldings, filaments and films | Chemistry; Metallurgy | 7 | Expired |
| US4954604A | Process for the production of aromatic polyether ketones | Chemistry; Metallurgy | 7 | Expired |
| US4667011A | Thermotropic 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 films | Chemistry; Metallurgy | 6 | Expired |
| US4970286A | Thermotropic, fully aromatic polyesters having a low processing temperature, a process for their production and their use for the production of moldings, filaments, fibers and films | Chemistry; Metallurgy | 6 | Expired |
| US4999414A | Process for the production of aromatic polyether ketones | Chemistry; Metallurgy | 5 | Expired |
| US4835243A | Thermotropic aromatic polymers with high elongation at break, processes for their preparation and their use for the production of moulded articles, filaments, fibres and films | Chemistry; Metallurgy | 5 | Expired |
| US4954606A | Solid phase post polymerization condensation of thermotropic polyester imides | Chemistry; Metallurgy | 5 | Expired |
| US5053477A | Process for the production of aromatic polyether ketones | Chemistry; Metallurgy | 5 | Expired |
| US4948863A | Thermotropic polyester imide from N-(3-hydroxy phenyl) trimellitic acid imide | Chemistry; Metallurgy | 4 | Expired |
| US4716252A | Process for the preparation of bis-hydroxyphenyl-n-alkanes, new bis-hydroxyphenyl-n-alkanes and new alkanediones | Chemistry; Metallurgy | 4 | Expired |
| US5084550A | Copolycarbonate from mixture of polyarylene diol | Chemistry; Metallurgy | 3 | Expired |
| US4931534A | Thermotropic aromatic polyesters, a process for their production and their use for the production of moldings, filaments, fibers and films | Chemistry; Metallurgy | 2 | Expired |
| US4739058A | Tetra-(hydroxyaryl)-bis-quinoxalines and preparation thereof | Chemistry; Metallurgy | 2 | Expired |
| US4912180A | Process for the preparation of polyarylene sulphides | Chemistry; Metallurgy | 1 | Expired |
| US5136013A | Process for the production of low-melting polymers containing at least one Z-configured stilbene group | Chemistry; Metallurgy | 1 | Expired |
| US5068300A | Bifunctional stilbene compounds containing at least one Z-configurated stilbene group, process for their preparation and their use for the preparation of polymers | Chemistry; Metallurgy | 1 | Expired |
| US5134219A | Stiff-chain polyheterocycles having improved solubility, a process for their production and their use | Chemistry; Metallurgy | 0 | Expired |
| US4806619A | Thermotropic 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 films | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.