Asta-Werke Aktiengesellschaft Chemische Fabrik
Patent Applications and Registrations
Patent applications and USPTO patent grants for Asta-Werke Aktiengesellschaft Chemische Fabrik.The latest application filed is for "salts of oxazaphosphorine derivatives".
- Asta-Werke Aktiengesellschaft Chemische Fabrik - Bielefeld DE
- ASTA-Werke Aktiengesellschaft Chemische Fabrik - Belefeld DE
| Patent | Date |
|---|---|
| Salts of oxazaphosphorine derivatives Grant 4,716,242 - Engel , et al. December 29, 1 | 1987-12-29 |
| Oxazaphosphorin-4-thio-alkanesulphonic acids, and neutral salts thereof Grant 4,623,742 - Scheffler , et al. November 18, 1 | 1986-11-18 |
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