MacDonald; Robert D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for MacDonald; Robert D..The latest application filed is for "pet litter separation system including pull-out cover".
- MacDonald; Robert D. - Lake Oswego
- MacDonald; Robert D. - Scottsdale AZ
- MacDonald; Robert D. - Mesa AZ
- MacDonald; Robert D. - Phoenix AZ
- MacDonald; Robert D. - Grand Blanc MI
- MacDonald; Robert D. - Anaheim CA
- MacDonald; Robert D. - Metamora MI
- MacDonald; Robert D. - Metamore MI
- MacDonald; Robert D. - Adrian MI
| Patent | Date |
|---|---|
| Pet litter separation system including pull-out cover Grant 5,690,051 - Fisher , et al. November 25, 1 | 1997-11-25 |
| Method of forming an identification band Grant 5,343,608 - MacDonald September 6, 1 | 1994-09-06 |
| Temperature and volume control valve assembly Grant 4,981,156 - Nicklas , et al. January 1, 1 | 1991-01-01 |
| Temperature and volume control valve assembly Grant 4,901,750 - Nicklas , et al. February 20, 1 | 1990-02-20 |
| Thermostatic valve assembly Grant 4,640,457 - MacDonald February 3, 1 | 1987-02-03 |
| Thermostatic valve assembly Grant 4,458,839 - MacDonald July 10, 1 | 1984-07-10 |
| Valve assembly Grant 4,453,567 - MacDonald June 12, 1 | 1984-06-12 |
| Submersible sump pump Grant 4,396,353 - MacDonald August 2, 1 | 1983-08-02 |
| Self-closing hinge Grant 4,287,641 - MacDonald September 8, 1 | 1981-09-08 |
| Internally finned tube Grant 4,163,474 - MacDonald , et al. August 7, 1 | 1979-08-07 |
| Door closing apparatus Grant 4,103,392 - MacDonald August 1, 1 | 1978-08-01 |
| Hinge for latchless door Grant RE28,786 - MacDonald April 27, 1 | 1976-04-27 |
| Demand driven multiplexing system Grant 3,904,829 - Martin , et al. September 9, 1 | 1975-09-09 |
| Tubing fitting Grant 3,874,709 - MacDonald April 1, 1 | 1975-04-01 |
| Drawer Grant 3,759,600 - MacDonald September 18, 1 | 1973-09-18 |
| Connector System Grant 3,736,834 - MacDonald June 5, 1 | 1973-06-05 |
| Molded Screen Frame Grant 3,729,045 - MacDonald April 24, 1 | 1973-04-24 |
| Hydraulic Door Closer Grant 3,680,171 - MacDonald August 1, 1 | 1972-08-01 |
| Electrical Outlet Box Grant 3,659,037 - MacDonald April 25, 1 | 1972-04-25 |
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