Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4492092 | Combination refrigerant circuit and hot water preheater | Michael C. Wituszynski, Theodore L. Woollis | 1985-01-08 |
| 4454641 | Method of assembling a heating exchanger | Rudy E. Haas, Curtis L. Tobin, James John Walker | 1984-06-19 |
| D274353 | Heat exchange unit | Walter W. Hoyle, Rudy E. Haas, Raymond D. O'Mara, Joseph A. Ciarlei | 1984-06-19 |
| 4392525 | Apparatus for securing a wire to a grille | Raymond D. O'Mara, Curtis L. Tobin | 1983-07-12 |
| 4390059 | Heat exchanger and fan and method of assembly | Rudy E. Haas, Curtis L. Tobin, James John Walker | 1983-06-28 |
| 4228846 | Control apparatus for a two-speed heat pump | — | 1980-10-21 |
| 4182133 | Humidity control for a refrigeration system | Rudy E. Haas, Richmond S. Hayes, Jr. | 1980-01-08 |