Drews; Wolfgang
Patent Applications and Registrations
Patent applications and USPTO patent grants for Drews; Wolfgang.The latest application filed is for "method and system for transmitting quality criteria of a synchronous network hierarchy".
- Drews; Wolfgang - Grobenzell DE
- Drews; Wolfgang - Zarpen DE
- Drews; Wolfgang - Bahrenhof DE
- Drews; Wolfgang - Reinfeld DE
| Patent | Date |
|---|---|
| Method and system for transmitting quality criteria of a synchronous network hierarchy Grant 7,251,257 - Becker , et al. July 31, 2 | 2007-07-31 |
| Optical switching matrix Grant 6,744,983 - Drews June 1, 2 | 2004-06-01 |
| Method and system for transmitting quality criteria of a synchronous network hierarchy App 20030031212 - Becker, Wolfgang ; et al. | 2003-02-13 |
| Optical switching matrix App 20020081063 - Drews, Wolfgang | 2002-06-27 |
| Breathing mask Grant 5,669,375 - Dahrendorf , et al. September 23, 1 | 1997-09-23 |
| Locking device for the container of a gas mask and breathing equipment Grant 5,450,844 - Kolbe , et al. September 19, 1 | 1995-09-19 |
| Air cleaning cartridge for a gas mask and breathing equipment with an insert Grant 5,291,881 - Drews , et al. March 8, 1 | 1994-03-08 |
| Closed-cycle breathing equipment Grant 5,038,772 - Kolbe , et al. August 13, 1 | 1991-08-13 |
| Emergency oxygen supply unit with a respirator Grant 4,766,893 - Drews August 30, 1 | 1988-08-30 |
| Case for a breathing mask or breathing apparatus unit Grant D289,207 - Drews April 7, 1 | 1987-04-07 |
| Oxygen insufflation device Grant 4,465,067 - Koch , et al. August 14, 1 | 1984-08-14 |
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