Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5871350 | Lingual orthodontic assembly for arch development and component parts useful therewith | William J. Clark, Steve A. Franseen, David E. Watt | 1999-02-16 |
| 5165255 | Intermediate staging ice bin for ice and beverage dispensing machines | Robert J. Alvarez | 1992-11-24 |
| D276933 | Heat exchanger | Donald C. Welch | 1984-12-25 |
| 4446915 | Heat exchanger tube circuits | Donald C. Welch | 1984-05-08 |