Petersen, Dave Andrew
Patent Applications and Registrations
Patent applications and USPTO patent grants for Petersen, Dave Andrew.The latest application filed is for "vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein".
- Petersen, Dave Andrew - Courtice CA
| Patent | Date |
|---|---|
| Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein App 20020134238 - Conrad, Wayne Ernest ; et al. | 2002-09-26 |
| Apparatus and method separating particles from a cyclonic fluid flow including an apertured particle separation member within a cyclonic flow region Grant 6,440,197 - Conrad , et al. August 27, 2 | 2002-08-27 |
| Vacuum cleaner cleaning head App 20010027587 - Conrad, Wayne Ernest ; et al. | 2001-10-11 |
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