Ritt; Robert T.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ritt; Robert T..The latest application filed is for "height-adjustable chair arm assembly".
- Ritt; Robert T. - Holland Township Ottawa County
- Ritt; Robert T. - Baroda MI
- Ritt; Robert T. - Holland MI
- Ritt; Robert T. - Holand Township Ottawa County
| Patent | Date |
|---|---|
| Height-adjustable chair arm assembly Grant 6,106,070 - Ritt , et al. August 22, 2 | 2000-08-22 |
| Chairback with side torsional movement Grant 6,059,363 - Roslund, Jr. , et al. May 9, 2 | 2000-05-09 |
| Operator-interactive adjustable workstation Grant 5,961,179 - Dixon , et al. October 5, 1 | 1999-10-05 |
| Chairback with side torsional movement Grant 5,951,109 - Roslund, Jr. , et al. September 14, 1 | 1999-09-14 |
| Height-adjustable chair arm assembly Grant 5,853,223 - Ritt , et al. December 29, 1 | 1998-12-29 |
| Height-adjustable chair arm assembly Grant 5,647,638 - Ritt , et al. July 15, 1 | 1997-07-15 |
| Method of installing valve guide insert Grant 5,493,776 - Kammeraad , et al. February 27, 1 | 1996-02-27 |
| Valve guide insert insertion tool Grant 5,355,572 - Kammeraad , et al. October 18, 1 | 1994-10-18 |
| Intake valve deposit removal apparatus Grant 5,161,336 - Ritt , et al. November 10, 1 | 1992-11-10 |
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