Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5211159 | Exhaust hood with disposable filter assembly and filter-condition sensor | Leonard R. Lieblein, William F. Harnesberger | 1993-05-18 |
| 5154161 | Air filter assembly for cooking apparatus | William F. Harnesberger | 1992-10-13 |
| 5063906 | Air filter for cooking apparatus | William F. Harnesberger | 1991-11-12 |
| 4343985 | Counter top food warmer and display case | Robert G. Wilson | 1982-08-10 |