Barthelmess; Ulrich
Patent Applications and Registrations
Patent applications and USPTO patent grants for Barthelmess; Ulrich.The latest application filed is for "centrifugal air separator".
- Barthelmess; Ulrich - Niederstotzingen DE
| Patent | Date |
|---|---|
| Centrifugal air separator Grant 5,788,727 - Barthelmess August 4, 1 | 1998-08-04 |
| Stirring bead mill with separator to strain out grinding beads Grant 5,630,557 - Barthelmess May 20, 1 | 1997-05-20 |
| Method for the operation of a stirring ball mill and a stirring ball mill for the practice of the method Grant 5,312,055 - Barthelmess , et al. May 17, 1 | 1994-05-17 |
| Agitating mill, particularly agitating ball mill Grant 4,673,134 - Barthelmess June 16, 1 | 1987-06-16 |
| Improved pivotable centrifugal classifier and method of classifying Grant 4,409,097 - Barthelmess October 11, 1 | 1983-10-11 |
| Centrifugal classifier Grant 4,390,419 - Barthelmess June 28, 1 | 1983-06-28 |
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