Stewen; Christian
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stewen; Christian.The latest application filed is for "portable hard surface cleaning appliance".
- Stewen; Christian - Marbach a. N. DE
- Stewen; Christian - Marbach DE
- Stewen; Christian - Winnenden DE
- Stewen; Christian - Leinfelden-Echterdingen DE
- Stewen; Christian - Aichach DE
| Patent | Date |
|---|---|
| Portable Hard Surface Cleaning Appliance App 20200383532 - Zuger; Juergen ; et al. | 2020-12-10 |
| Portable hard surface cleaning appliance Grant 10,258,207 - Stewen , et al. | 2019-04-16 |
| Portable Hard Surface Cleaning Appliance App 20160128528 - Stewen; Christian ; et al. | 2016-05-12 |
| Vacuum cleaning device Grant 8,186,005 - Stewen , et al. May 29, 2 | 2012-05-29 |
| Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out said method Grant 7,867,304 - Stewen , et al. January 11, 2 | 2011-01-11 |
| Vacuum cleaner App 20090205159 - Stewen; Christian ; et al. | 2009-08-20 |
| Method for cleaning the filters of a vacuum Cleaner and vacuum cleaner for carrying out said method App 20080092498 - Stewen; Christian ; et al. | 2008-04-24 |
| Vacuum cleaning device App 20080086835 - Stewen; Christian ; et al. | 2008-04-17 |
| Vacuum-cleaner nozzle App 20070039128 - Rust; Hendrik ; et al. | 2007-02-22 |
| Laser amplifier system Grant 6,891,874 - Erhard , et al. May 10, 2 | 2005-05-10 |
| Laser amplification system Grant 6,577,666 - Erhard , et al. June 10, 2 | 2003-06-10 |
| Laser amplifier system App 20030025987 - Erhard, Steffen ; et al. | 2003-02-06 |
| Laser amplification system Grant 6,438,152 - Contag , et al. August 20, 2 | 2002-08-20 |
| Laser amplification system App 20010040909 - Erhard, Steffen ; et al. | 2001-11-15 |
| Laser amplification system App 20010038658 - Contag, Karsten ; et al. | 2001-11-08 |
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