Ritz; Josef
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ritz; Josef.The latest application filed is for "recovery of caprolactam from oligomers and/or polymers of caprolactam".
- Ritz; Josef - Ludwigshafen DE
| Patent | Date |
|---|---|
| Recovery of caprolactam from oligomers and/or polymers of caprolactam Grant 5,700,358 - Fuchs , et al. December 23, 1 | 1997-12-23 |
| Preparation of caprolactam from 6-aminocapronitrile Grant 5,693,793 - Ritz , et al. December 2, 1 | 1997-12-02 |
| Obtaining caprolactam by cleavage of molten polycaprolactam Grant 5,536,831 - Kopietz , et al. July 16, 1 | 1996-07-16 |
| Process for the purification of crude caprolactam Grant 5,458,740 - Losier , et al. October 17, 1 | 1995-10-17 |
| Recovery of caprolactam from oligomers and/or polymers of caprolactam Grant 5,360,905 - Fuchs , et al. November 1, 1 | 1994-11-01 |
| Recovery of caprolactam from polycaprolactam Grant 5,359,062 - Fuchs , et al. October 25, 1 | 1994-10-25 |
| Platinum-on-graphite catalysts and the use thereof Grant 5,120,699 - Weiss , et al. June 9, 1 | 1992-06-09 |
| Stabilized solutions of hydroxylamine or its salts in water or alcohols, and their preparation Grant 4,551,318 - Grosskinsky , et al. November 5, 1 | 1985-11-05 |
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