Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6361512 | Massaging apparatus using inflatable bladders | Spencer L. Mackay, Alan Crawford, Chris J. Wilson, John R. Petersen | 2002-03-26 |
| 6019341 | Christmas tree stand | Patrick W. Brown, Robert L. Dorsey, Spencer L. Mackay, John J. Pastrick, Jeffrey S. Plantz +1 more | 2000-02-01 |
| D407402 | Portable voice recorder | Scott T. Shimatsu | 1999-03-30 |
| D406139 | Portable voice recorder | Scott T. Shimatsu, Spencer L. Mackay | 1999-02-23 |
| D371554 | Combined portable audio message recording and playback station | Scott T. Shimatsu, Spencer L. Mackay | 1996-07-09 |
| D371242 | Electric toothbrush with combined charging base and brush-head container therefor | Scott T. Shimatsu, Spencer L. Mackay | 1996-07-02 |
| D368373 | Combined electric toothbrush and charging base therefor | Scott T. Shimatsu, Spencer L. Mackay, Stanfield Young | 1996-04-02 |
| 5234132 | Actuator for dispensing pump | George M. Bachand, Brian Chase, Allan B. Johnson | 1993-08-10 |
| D328816 | Case for an electronic toothbrush or similar article | Stuart Alexander Cook, Dave Hines, Spencer L. Mackay | 1992-08-25 |
| D325892 | Electrically powered three wheeled vehicle | Elaine M. Nesterick, Robert Reynolds, Spencer L. Mackay | 1992-05-05 |
| 5020624 | Power drive scooter | Elaine M. Nesterick, Robert Reynolds, Spencer L. Mackay | 1991-06-04 |
| 4827550 | Removable head mechanism for automatic cleaning device | John M. Trenary | 1989-05-09 |
| D269697 | Sprinkler system control housing | Craig R. Tisserat, Enric C. Mendoza | 1983-07-12 |