Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5762069 | Multiple sample biopsy forceps | Brian S. Kelleher, Dan Vance | 1998-06-09 |
| 5144675 | Variable recovery time circuit for use with wide dynamic range automatic gain control for hearing aid | Mead C. Killion, Harry Teder, Steven P. Hanke | 1992-09-01 |
| 4869229 | Burner unit | — | 1989-09-26 |
| RE32722 | Ventilation system with thermal energy recovery | — | 1988-08-02 |
| 4740158 | Radiant energy drying oven with fume incineration feature | — | 1988-04-26 |
| 4731015 | Burner unit | — | 1988-03-15 |
| 4727854 | High efficiency infrared radiant energy heating system and reflector therefor | — | 1988-03-01 |
| 4716883 | High efficiency infrared radiant energy heating system and method of operation thereof | — | 1988-01-05 |
| 4712734 | Low-intensity infrared heating system with effluent recirculation | — | 1987-12-15 |
| 4699316 | Energy efficient heating system for greenhouses | — | 1987-10-13 |
| 4676434 | Energy efficient heating system for greenhouses | — | 1987-06-30 |
| 4529123 | Radiant heater system | — | 1985-07-16 |
| 4396406 | Unitary matrix, valve and fan housing for energy recovery | — | 1983-08-02 |
| 4322229 | Unitary matrix, valve and fan housing for energy recovery | — | 1982-03-30 |