Korell; Donald D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Korell; Donald D..The latest application filed is for "body weight chair control".
- Korell; Donald D. - Ada MI
- Korell; Donald D. - Grand Rapids MI
| Patent | Date |
|---|---|
| Body weight chair control Grant 4,479,679 - Fries , et al. October 30, 1 | 1984-10-30 |
| Chair control Grant 4,214,726 - Karrip , et al. July 29, 1 | 1980-07-29 |
| Tiltable desk top Grant 3,882,795 - Korell May 13, 1 | 1975-05-13 |
| Suspended Pedestal Desk Grant 3,862,789 - Korell , et al. January 28, 1 | 1975-01-28 |
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