Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11326794 | Combined economizer and mixer for air handling unit | Mark Jeffrey Pavol, Kevin Deems | 2022-05-10 |
| 11287157 | Combined economizer and mixer for air handling unit | Mark Jeffrey Pavol, Kevin Deems | 2022-03-29 |
| 10859286 | Combined economizer and mixer for air handling unit | Mark Jeffrey Pavol, Kevin Deems | 2020-12-08 |
| 5832744 | Distributor for refrigeration system | Robert S. Ens, Joseph H. Heffner | 1998-11-10 |
| 5423480 | Dual capacity thermal expansion valve | Joseph H. Heffner | 1995-06-13 |
| 5364066 | Dual port valve with stepper motor actuator | Dennis L. Hoehne, John W. Friend, Donald L. Tillotson | 1994-11-15 |
| 5277364 | Dual capacity thermal expansion valve | Joseph H. Heffner | 1994-01-11 |
| 4911404 | Electronically operated expansion valve | Dennis L. Hoehne | 1990-03-27 |