Quadbeck-Seeger; Hans-Juergen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Quadbeck-Seeger; Hans-Juergen.The latest application filed is for "preparation of finely divided, pulverulent carotenoid preparations".
- Quadbeck-Seeger; Hans-Juergen - Bad Durkheim DE
- Quadbeck-Seeger; Hans-Juergen - Ludwigshafen DT
| Patent | Date |
|---|---|
| Preparation of finely divided, pulverulent carotenoid preparations Grant 4,726,955 - Horn , et al. February 23, 1 | 1988-02-23 |
| Production of unsubstituted or substituted isatoic anhydride Grant 3,984,406 - Quadbeck-Seeger , et al. October 5, 1 | 1976-10-05 |
| Manufacture of indazoles Grant 3,862,958 - Ruechardt , et al. January 28, 1 | 1975-01-28 |
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