Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10461459 | Switched electrical plug lock | Casparus Cate, Timothy K. Nowack | 2019-10-29 |
| 6357239 | Oil return from chiller evaporator | — | 2002-03-19 |
| 6341492 | Oil return from chiller evaporator | — | 2002-01-29 |
| 6035651 | Start-up method and apparatus in refrigeration chillers | — | 2000-03-14 |
| 5884494 | Oil flow protection scheme | Ronald W. Okoren, Sean A. Smith, Daniel C. Leaver, John R. Moilanen, Paul D. Ulland | 1999-03-23 |
| 5761914 | Oil return from evaporator to compressor in a refrigeration system | Sean A. Smith | 1998-06-09 |
| 5431025 | Apparatus and method of oil charge loss protection for compressors | Robert L. Oltman | 1995-07-11 |
| 5347821 | Apparatus and method of oil charge loss protection for compressors | Robert L. Oltman | 1994-09-20 |
| 5067560 | Condenser coil arrangement for refrigeration system | William A. Smiley, III, Gerald A. Jansky | 1991-11-26 |
| 5029448 | Oil separator for refrigeration systems | — | 1991-07-09 |
| 4995239 | Liquid line service and process device | — | 1991-02-26 |