Siegrist; Walter
Patent Applications and Registrations
Patent applications and USPTO patent grants for Siegrist; Walter.The latest application filed is for "catalysts for the preparation of methylpyridine".
- Siegrist; Walter - Visp CH
- Siegrist; Walter - Visp Kanton Wallis
| Patent | Date |
|---|---|
| Catalysts for the preparation of methylpyridine Grant 8,946,115 - Pianzola , et al. February 3, 2 | 2015-02-03 |
| Catalysts For The Preparation Of Methylpyridine App 20140051569 - Pianzola; Daniel ; et al. | 2014-02-20 |
| Catalysts for the preparation of methylpyridine Grant 8,530,664 - Pianzola , et al. September 10, 2 | 2013-09-10 |
| Catalysts For The Preparation Of Methylpyridine App 20110092711 - Pianzola; Daniel ; et al. | 2011-04-21 |
| Fuel paste and process for its production Grant 3,964,880 - Siegrist June 22, 1 | 1976-06-22 |
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