Sauerwald; Christian
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sauerwald; Christian.The latest application filed is for "closure element".
- Sauerwald; Christian - St. Wendel DE
| Patent | Date |
|---|---|
| Filter module having a closure element Grant 6,858,137 - Hahmann , et al. February 22, 2 | 2005-02-22 |
| Closure element App 20020104791 - Hahmann, Uwe ; et al. | 2002-08-08 |
| Closure element Grant 6,419,825 - Hahmann , et al. July 16, 2 | 2002-07-16 |
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