Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329098 | Open coil heater for efficient transport | H. Keith Howard | 1994-07-12 |
| 5324919 | Open coil heater for efficient transport with nestable heating elements | H. Keith Howard | 1994-06-28 |