Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11022117 | Variable capacity screw compressor and method | Daniel R. Crum, Timothy Hagen, Dennis R. Dorman, John R. Sauls | 2021-06-01 |
| 10746448 | Controls and operation of variable frequency drives | Benjamin James Sykora, Nathan Thomas West, David M. Foye, Korwin Jay Anderson, Robert S. Bakkestuen | 2020-08-18 |
| 10352608 | Screw compressor drive control | David M. Foye, Nathan Thomas West, John R. Sauls | 2019-07-16 |
| 10295239 | Controls and operation of variable frequency drives | Nathan Thomas West, Benjamin James Sykora, David M. Foye, Korwin Jay Anderson, Robert S. Bakkestuen | 2019-05-21 |
| 10240603 | Compressor having external shell with vibration isolation and pressure balance | William B. Rockwood, Pavak Mehta, Daniel R. Crum, Timothy G. Garvin, Rodney L. Lakowske +1 more | 2019-03-26 |
| 10101070 | Axial thrust control for rotary compressors | Nathan Thomas West, David M. Foye, Korwin Jay Anderson, Benjamin James Sykora | 2018-10-16 |
| 9733002 | Screw compressor drive control | David M. Foye, Nathan Thomas West, John R. Sauls | 2017-08-15 |
| 9605886 | Axial thrust control for rotary compressors | Nathan Thomas West, David M. Foye, Korwin Jay Anderson, Benjamin James Sykora | 2017-03-28 |
| 9595905 | Refrigerant compressor drives offering enhanced robustness, efficiency and rated voltage operability | Nathan Thomas West, David M. Foye | 2017-03-14 |
| 8875530 | Screw compressor drive control | David M. Foye, Nathan Thomas West, John R. Sauls | 2014-11-04 |
| 8365544 | Screw compressor drive control | David M. Foye, Nathan Thomas West, John R. Sauls | 2013-02-05 |
| 8234877 | Compressor discharge valve providing freeze and charge migration protection | Jay H. Johnson, Rodney L. Lakowske, Sean A. Smith, John R. Moilanen | 2012-08-07 |
| 6205808 | Prevention of oil backflow from a screw compressor in a refrigeration chiller | — | 2001-03-27 |
| 5979168 | Single-source gas actuation for screw compressor slide valve assembly | — | 1999-11-09 |
| 5502984 | Non-concentric oil separator | Michael C. Boehde | 1996-04-02 |