Claude Eckhardt
38Patents
8h-index
25Co-inventors
75Inventor score
Filing activity: Jun 27, 1977 → Sep 8, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5269815A | Process for the fluorescent whitening of hydrophobic textile material with disperse fluorescent whitening agents from super-critical carbon dioxide | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4368053A | Fabric conditioning compositions containing phthalocyanine substituted with quaternary ammonium group-containing sulphonamide photoactivator | Textiles; Paper | 22 | Expired |
| US5733341A | Inhibition of dye migration in a wash liquor | Chemistry; Metallurgy | 14 | Expired |
| US4187289A | Softening agents containing diester/amine adducts and quaternary ammonium salts, valuable for use as after-rinse softeners and after-shampoo hair conditioners | Textiles; Paper | 14 | Expired |
| US4311605A | Compositions for treating textiles | Chemistry; Metallurgy | 11 | Expired |
| US5035825A | Stable bleaching detergents containing stilbene fluorescent whitening agents | Chemistry; Metallurgy | 9 | Expired |
| US5744599A | Triazinyldiaminostilbene compounds useful as ultraviolet absorbers and as fluorescent whitening agents | Textiles; Paper | 8 | Expired |
| US5688758A | Textile treatment | Textiles; Paper | 8 | Expired |
| US5449477A | Bleach dispersion of long shelf life | Textiles; Paper | 7 | Expired |
| US5322525A | Process for treating polyamide containing articles to enhance their moulding stability | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5945396A | Compounds | Textiles; Paper | 6 | Expired |
| US6015504A | Method for increasing the SPF rating of textile fibers by treatment with triazinyldiamino stilbene compounds | Textiles; Paper | 6 | Expired |
| US5145991A | Distyrylbiphenyl compounds | Chemistry; Metallurgy | 6 | Expired |
| US4540518A | Zinc and aluminum phthalocyanines | Textiles; Paper | 6 | Expired |
| US5279772A | Liquid detergents containing specifically disulfonated dibenzofuranyl-biphenyls as flourescent whitening agents | Chemistry; Metallurgy | 5 | Expired |
| US4147648A | Brightening compositions | Textiles; Paper | 5 | Expired |
| US5139695A | Stable bleaching compositions containing fluorescent whitening agents | Textiles; Paper | 5 | Expired |
| US4908040A | Anionic cyclodiylide compounds, their preparation and use in washing agents as shading dyes | Chemistry; Metallurgy | 5 | Expired |
| US5741920A | Inhibition of re-absorption of migrating dyes in the wash liquor | Chemistry; Metallurgy | 5 | Expired |
| US5939379A | Triazine derivatives and their use | Textiles; Paper | 5 | Expired |
| US6143889A | Asymmetric stilbene compounds | Textiles; Paper | 5 | Expired |
| US5462564A | Inhibition of re-absorption of migrating dyes in the wash liquor | Chemistry; Metallurgy | 5 | Expired |
| US5167871A | Liquid detergent compositions containing fluorescent whitening agents, polyvinyl pyrrolidone polymer or copolymer and silicic acid | Chemistry; Metallurgy | 4 | Expired |
| US5965506A | Fabric bleaching composition | Chemistry; Metallurgy | 4 | Expired |
| US4925595A | Liquid detergent compositions containing disulfonated fluorescent whitening agents: di-styryl-biphenyl or di-styryl-benzene derivatives | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.