Engel; Gregory J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Engel; Gregory J..The latest application filed is for "street sweeper with dust control".
- Engel; Gregory J. - Plymouth MN
| Patent | Date |
|---|---|
| Street sweeper recirculation flap Grant 7,520,017 - Wilmo , et al. April 21, 2 | 2009-04-21 |
| Conveyor lip for motorized street sweeper Grant 7,124,463 - Mathews , et al. October 24, 2 | 2006-10-24 |
| Street sweeper with vacuumized dust control Grant 7,086,118 - Engel , et al. August 8, 2 | 2006-08-08 |
| Street sweeper with dust control App 20060053582 - Engel; Gregory J. ; et al. | 2006-03-16 |
| Street sweeper with vacuumized dust control App 20060048332 - Engel; Gregory J. ; et al. | 2006-03-09 |
| Street sweeper with dust control Grant 6,966,097 - Engel , et al. November 22, 2 | 2005-11-22 |
| Street sweeper with vacuumized dust control App 20040143928 - Engel, Gregory J. ; et al. | 2004-07-29 |
| Motorized street sweeper App 20040045584 - P. Mathews, Thomas ; et al. | 2004-03-11 |
| Street Sweeper With Dust Control App 20040045123 - Engel, Gregory J. ; et al. | 2004-03-11 |
| Street Sweper With Vacuumized Dust Control App 20040045111 - Engel, Gregory J. ; et al. | 2004-03-11 |
| Street sweeper recirculation flap App 20040045582 - Wilmo, Michael S. ; et al. | 2004-03-11 |
| Conveyor lip for motorized street sweeper App 20040045583 - Mathews, Thomas P. ; et al. | 2004-03-11 |
| Filter system for mobile debris collection machine Grant 6,428,590 - Lehman , et al. August 6, 2 | 2002-08-06 |
| Dual mode debris pickup machine Grant 6,389,641 - Boomgaarden , et al. May 21, 2 | 2002-05-21 |
| Increased litter storage for vacuum trash collector Grant 5,996,173 - Engel , et al. December 7, 1 | 1999-12-07 |
| Steerable side squeegees Grant 5,455,985 - Hamline , et al. October 10, 1 | 1995-10-10 |
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