Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823686 | Pressure equalization system and method | Eugene Chumley, Pantelis Hatzikazakis, William Z. Sun, Timothy Wampler, Charles E. Zimmerman +2 more | 2004-11-30 |
| 6591621 | Two stage reciprocating compressors and associated HVAC systems and methods | Joseph F. Loprete, Michael R. Young, John W. Tolbert, Jr., David Monk, Philip C. Wagner +2 more | 2003-07-15 |
| 6584791 | Pressure equalization system and method | David Monk, Pantelis Hatzikazakis, William Z. Sun, Timothy Wampler, Charles E. Zimmerman | 2003-07-01 |
| 6389823 | Two stage reciprocating compressors and associated HVAC system and methods | Joseph F. Loprete, Michael R. Young, John W. Tolbert, Jr., David Monk, Philip C. Wagner +2 more | 2002-05-21 |
| 6331925 | Two stage reciprocating compressors and associated HVAC systems and methods | Joseph F. Loprete, Michael R. Young, John W. Tolbert, Jr., David Monk, Philip C. Wagner +2 more | 2001-12-18 |
| 6276154 | Two step metering device | — | 2001-08-21 |
| 6132177 | Two stage reciprocating compressors and associated HVAC systems and methods | Joseph F. Loprete, Michael R. Young, John W. Tolbert, Jr., David Monk, Philip C. Wagner +2 more | 2000-10-17 |