Helfet; Leon
Patent Applications and Registrations
Patent applications and USPTO patent grants for Helfet; Leon.The latest application filed is for "optic retainer hooks".
- Helfet; Leon - Camarillo CA
Trademarks
| Patent | Date |
|---|---|
| Optic Retainer Hooks App 20210191152 - Helfet; Leon ; et al. | 2021-06-24 |
| Manual litter box Grant 8,567,348 - Cook , et al. October 29, 2 | 2013-10-29 |
| Manual Litter Box App 20110265728 - Cook; Alan Jay ; et al. | 2011-11-03 |
| Manual litter box Grant 7,997,230 - Cook , et al. August 16, 2 | 2011-08-16 |
| Manual Litter Box App 20100095898 - Cook; Alan Jay ; et al. | 2010-04-22 |
| Aquarium filter water return chamber Grant 7,601,258 - Helfet October 13, 2 | 2009-10-13 |
| Aquarium filter unit Grant 7,425,274 - Helfet September 16, 2 | 2008-09-16 |
| Strap wrench for gripping and turning generally cylindrical objects Grant 7,155,999 - Helfet January 2, 2 | 2007-01-02 |
| Manually operated strap wrench for turning generally cylindrical objects Grant 6,789,450 - Helfet September 14, 2 | 2004-09-14 |
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