Hennigar; Douglas
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hennigar; Douglas.The latest application filed is for "recumbent stepper apparatus".
- Hennigar; Douglas - Ann Arbor MI
| Patent | Date |
|---|---|
| Recumbent stepper apparatus Grant 7,775,942 - Hildebrandt , et al. August 17, 2 | 2010-08-17 |
| Leg stabilization device Grant 7,540,830 - Hildebrandt , et al. June 2, 2 | 2009-06-02 |
| Recumbent Stepper Apparatus App 20090124467 - Hildebrandt; Mark ; et al. | 2009-05-14 |
| Hand harness for exercise equipment Grant 7,490,363 - Hildebrandt , et al. February 17, 2 | 2009-02-17 |
| Leg stabilization device App 20080096731 - Hildebrandt; Mark ; et al. | 2008-04-24 |
| Hand harness for exercise equipment App 20070130664 - Hildebrandt; Mark ; et al. | 2007-06-14 |
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