Issued Patents All Time
Showing 26–50 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D308835 | Heat detector | — | 1990-06-26 |
| 4922407 | Modular electronic timer switch system | Daniel J. Birk, Michael T. Mantzke | 1990-05-01 |
| D304442 | Light control | — | 1989-11-07 |
| D303248 | Light control | — | 1989-09-05 |
| D301750 | Nightlight | — | 1989-06-20 |
| D296549 | Automatic light socket | — | 1988-07-05 |
| 4743829 | Plug-in device with slide cover over plug prongs | Wayne D. Steward, Witalij Didyk | 1988-05-10 |
| D292131 | Flashlight | — | 1987-09-29 |
| D291974 | Automatic thermostat control | — | 1987-09-22 |
| D291125 | Night-light | — | 1987-07-28 |
| D291069 | Timer | — | 1987-07-28 |
| D291010 | Flashlight | — | 1987-07-21 |
| D290814 | Timer | — | 1987-07-14 |
| D290815 | Timer | — | 1987-07-14 |
| D290816 | Timer | — | 1987-07-14 |
| D289800 | Flashlight | — | 1987-05-12 |
| 4647832 | Three position switch for portable, rechargeable device | Wayne D. Steward, Witalij Didyk | 1987-03-03 |
| D288252 | Fire extinguisher valve | — | 1987-02-10 |
| D288068 | Automatic thermostat control | — | 1987-02-03 |
| D284748 | Smoke detector | — | 1986-07-22 |
| D283407 | Smoke detector | — | 1986-04-15 |
| D283254 | Flashlight | — | 1986-04-01 |
| D278415 | Wall timer | — | 1985-04-16 |
| D276417 | Smoke detector | — | 1984-11-20 |
| D276375 | Flashlight | — | 1984-11-13 |