Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5613368 | Refrigeration apparatus and methods | Robert Burdick, Ronald A. Cole | 1997-03-25 |
| 5590539 | Refrigeration apparatus and methods | Robert O. Martin, Russell Gossen | 1997-01-07 |
| 5214928 | Refrigeration apparatus and methods | Robert Burdick, Ronald A. Cole | 1993-06-01 |