Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7220355 | Evaporative cooler pump strainer | Roger Palmer | 2007-05-22 |
| 5061405 | Constant humidity evaporative wicking filter humidifier | Terrence L. Stanek, Ronald G. Brant | 1991-10-29 |
| 5003162 | Heater with alert indicator | Robert A. White, III | 1991-03-26 |
| 4873422 | Wall mounted heater with plug mount and support | Herbert K. Streich, Robert D. Leach, Joel R. Johnson, Thomas Brian Olson | 1989-10-10 |
| 4755653 | Heater with alert indicator | Robert A. White, III | 1988-07-05 |
| D282709 | Coffee maker | Douglas A. Albrecht, Roger N. Underwood | 1986-02-25 |
| D271612 | Electric insect killer | Harold N. Minick, Russell O. Blanchard | 1983-11-29 |
| D265122 | Portable electric heater | Rex L. Notbohm | 1982-06-22 |
| D256273 | Portable electric heater | Peter Huggler, Rex L. Notbohm | 1980-08-05 |