Fickert; Werner
Patent Applications and Registrations
Patent applications and USPTO patent grants for Fickert; Werner.The latest application filed is for "method for the preparation of low molecular weight alkali metal huminates".
- Fickert; Werner - Mannheim DE
| Patent | Date |
|---|---|
| Method for the preparation of low molecular weight alkali metal huminates Grant 4,921,840 - Seubert , et al. May 1, 1 | 1990-05-01 |
| Process for the production of zinc 2-mercaptopyridine N-oxide Grant 4,659,830 - Maurer , et al. April 21, 1 | 1987-04-21 |
| Process for production of zinc 2-mercaptopyridine-n-oxide Grant 4,632,991 - Maurer , et al. December 30, 1 | 1986-12-30 |
| Method for preparation of 4-halogenonaphthalic acid anhydrides Grant 4,582,910 - Orth , et al. April 15, 1 | 1986-04-15 |
| Pyrrole containing 2-aminonitropyridine derivatives Grant 4,567,272 - Orth , et al. January 28, 1 | 1986-01-28 |
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