Eric B. Stephens
29Patents
7h-index
22Co-inventors
69Inventor score
Filing activity: Jun 25, 1990 → Sep 10, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5169929A | Lithium/HMPA-promoted synthesis of poly(phenylenes) | Chemistry; Metallurgy | 27 | Expired |
| US5864002A | Process for coloring polymer resins and products thereof | Chemistry; Metallurgy | 19 | Expired |
| US5955523A | Polyoxalkylenated disazo colored thermoplastic resins | Chemistry; Metallurgy | 17 | Expired |
| US6559216B1 | Low-color ultraviolet absorber compounds and compositions thereof | Chemistry; Metallurgy | 15 | Expired |
| US6605126B1 | Low-viscosity polymeric colorants exhibiting high color strength characteristics | Chemistry; Metallurgy | 11 | Expired |
| US5731398A | Black colorant composition exhibiting low flairing | Chemistry; Metallurgy | 10 | Expired |
| US6602447B2 | Low-color ultraviolet absorbers for high UV wavelength protection applications | Chemistry; Metallurgy | 9 | Expired |
| US7097669B2 | Colorant compositions | Chemistry; Metallurgy | 7 | Expired |
| US5236686A | Precursor polyphenylene for and method of producing glassy carbon | Chemistry; Metallurgy | 5 | Expired |
| US7544804B2 | Colorant compositions | Chemistry; Metallurgy | 5 | Active |
| US5925150A | Black colorant composition exhibiting low flairing | Chemistry; Metallurgy | 4 | Expired |
| US5334668A | Precursor polyphenylene for and method of producing glassy carbon | Chemistry; Metallurgy | 4 | Expired |
| US6492533B1 | Bismethine benzodifuranone derivative colorants | Chemistry; Metallurgy | 3 | Expired |
| US6891058B2 | Low-color ultraviolet absorber compounds and compositions thereof | Chemistry; Metallurgy | 3 | Expired |
| US6703443B2 | Low-viscosity nonaqueous liquid pigment dispersions and methods of utilizing such compositions | Chemistry; Metallurgy | 3 | Expired |
| US7632682B2 | Anthraquinone colorant compositions and methods for producing the same | Emerging Cross-Sectional Technologies | 2 | Active |
| US7014797B2 | Low-color ultraviolet absorbers for high UV wavelength protection applications | Chemistry; Metallurgy | 2 | Expired |
| US6077927A | Process for coloring polymer resins and products thereof | Chemistry; Metallurgy | 2 | Expired |
| US5338823A | Lithium/HMPA-promoted synthesis of poly(phenylenes) | Chemistry; Metallurgy | 2 | Expired |
| US6566425B1 | Polymeric articles comprising novel bismethine benzodifuranone derivative colorants | Chemistry; Metallurgy | 2 | Expired |
| US6479648B1 | Polymeric bis-acetoacetanilide azo colorants | Chemistry; Metallurgy | 1 | Expired |
| US6607591B1 | Low-viscosity nonaqueous liquid pigment dispersions and methods of utilizing such compositions | Chemistry; Metallurgy | 1 | Expired |
| US7094918B2 | Low-color ultraviolet absorbers for thermoplastic and thermoset high UV wavelength protection applications | Chemistry; Metallurgy | 0 | Expired |
| US12377033B2 | Hair care composition containing polymeric colorant | Human Necessities | 0 | Active |
| US6667392B2 | Polymeric acetoacetanilide azo colorants | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.