Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6612119 | Refrigeration circuit with reheat coil | Paul R. Glamm, Dwayne L. Johnson, Walter Earhart, Jr., John F. Klouda, Brian J. Kiel +1 more | 2003-09-02 |
| 6564560 | Oil-free liquid chiller | Arthur L. Butterworth, Todd R. Vandeleest | 2003-05-20 |
| 6381970 | Refrigeration circuit with reheat coil | Paul R. Glamm, Dwayne L. Johnson, Walter Earhart, Jr., John F. Klouda, Brian J. Kiel +1 more | 2002-05-07 |
| 6279340 | Oil-free liquid chiller | Arthur L. Butterworth, Todd R. Vandeleest, James C. Tischer | 2001-08-28 |
| 6272869 | Multiple orifice expansion device | — | 2001-08-14 |
| 6176092 | Oil-free liquid chiller | Arthur L. Butterworth, Todd R. Vandeleest, James C. Tischer | 2001-01-23 |
| 5675978 | Oil management apparatus for a refrigeration chiller | Frederic Byron Hamm, Jr. | 1997-10-14 |
| 5417083 | In-line incremetally adjustable electronic expansion valve | — | 1995-05-23 |
| 4884590 | Electric motor driven air valve | H. Kenneth Ring | 1989-12-05 |
| 4820130 | Temperature sensitive solenoid valve in a scroll compressor | Peter A. Kotlarek, Ronald W. Okoren | 1989-04-11 |
| 4662819 | Centrifugal fan with variable blade pitch | Rodney L. Lakowske, James C. Tischer | 1987-05-05 |
| 4431388 | Controlled suction unloading in a scroll compressor | Robert E. Utter | 1984-02-14 |
| 4416597 | Tip seal back-up member for use in fluid apparatus of the scroll type | Arthur L. Butterworth | 1983-11-22 |
| 4415318 | Rolling thrust bearing for use in a scroll machine | Arthur L. Butterworth | 1983-11-15 |
| 4389171 | Gas compressor of the scroll type having reduced starting torque | John R. Sauls | 1983-06-21 |