Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6085701 | Coil tube heater for a used-oil fired furnace | Norman M. Stauffer, Frederick W. Phillips, Benuel F. Smoker, Glenn A. Musser | 2000-07-11 |
| 6048197 | Air flow control head for multi oil furnaces | — | 2000-04-11 |
| 5531212 | Multi oil furnace | Benjamin K. Smoker, David J. Yoder, Benuel F. Smoker, Frederick W. Phillips | 1996-07-02 |
| 5490495 | Cleanout header for multi oil furnaces | Beneul F. Smoker, David J. Yoder, Benjamin K. Smoker, Frederick W. Phillips | 1996-02-13 |
| 5408941 | Multi oil furnace service doors | Benuel F. Smoker, David J. Yoder | 1995-04-25 |