Keck; Helmut
Patent Applications and Registrations
Patent applications and USPTO patent grants for Keck; Helmut.The latest application filed is for "hydraulic machine rotor".
- Keck; Helmut - Dietlikon CH
- Keck; Helmut - Burgkirchen DE
| Patent | Date |
|---|---|
| Hydraulic machine rotor Grant 7,210,908 - Keck May 1, 2 | 2007-05-01 |
| High-concentration aqueous solutions of betaines or amine oxides Grant 7,033,989 - Keck , et al. April 25, 2 | 2006-04-25 |
| Hydraulic machine rotor App 20050214115 - Keck, Helmut | 2005-09-29 |
| High-concentration aqueous solutions of betaines or amine oxides App 20030162952 - Keck, Helmut ; et al. | 2003-08-28 |
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