Perret; Andre
Patent Applications and Registrations
Patent applications and USPTO patent grants for Perret; Andre.The latest application filed is for "watch hairspring and method for making same".
- Perret; Andre - Les Geneveys-sur-Coffrane CH
- Perret; Andre - Neuchatel CH
- Perret; Andre - Munich DE
- Perret; Andre - Chatou FR
| Patent | Date |
|---|---|
| Watch hairspring and method for making same Grant 7,077,562 - Bourgeois , et al. July 18, 2 | 2006-07-18 |
| Watch hairspring and method for making same App 20050281137 - Bourgeois, Claude ; et al. | 2005-12-22 |
| Electrochemical production of peroxopyrosulphuric acid using diamond coated electrodes Grant 6,855,242 - Comninellis , et al. February 15, 2 | 2005-02-15 |
| Protective roof for bicycles or the like Grant 6,227,557 - Perret May 8, 2 | 2001-05-08 |
| Method of manufacturing a device with micro-shutters and application of such a method to obtain a light modulating device Grant 4,584,056 - Perret , et al. April 22, 1 | 1986-04-22 |
| Apparatus for separating electrolysis bath residues on precalcined anodes Grant 4,512,695 - Brun , et al. April 23, 1 | 1985-04-23 |
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