Issued Patents All Time
Showing 51–75 of 172 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9429151 | Variable frequency drive heat sink assembly | KeonWoo Lee, Mark J. Perkovich, Suresh Duraisamy, XuQiang Liao, Claus E. Jorgensen +1 more | 2016-08-30 |
| 9358859 | Transport refrigeration system powered by diesel engine with pressurized combustion air | Russell G. Lewis, Nader S. Awwad, Benjamin Edward Ferguson, John T. Steele | 2016-06-07 |
| 9200811 | System and method for control of heat system operation by changing a switching set point of operation | Alexander Lifson | 2015-12-01 |
| 9139066 | Combined operation and control of suction modulation and pulse width modulation valves | Alexander Lifson | 2015-09-22 |
| 9103575 | Operation and control of tandem compressors and reheat function | Alexander Lifson | 2015-08-11 |
| 8993070 | Dual powder coating method for aluminum substrates | Mark R. Jaworowski | 2015-03-31 |
| 8960522 | Automated brazing system | Zhihui Xiao, Luis Felipe Avila, Jeffrey L. Jones | 2015-02-24 |
| 8925336 | Refrigerant system performance enhancement by subcooling at intermediate temperatures | Alexander Lifson | 2015-01-06 |
| 8904813 | Pulse width modulated system with pressure regulating valve | Alexander Lifson | 2014-12-09 |
| 8661846 | Restriction in vapor injection line | Alexander Lifson | 2014-03-04 |
| 8584487 | Refrigerant system with expander speed control | Alexander Lifson | 2013-11-19 |
| 8528358 | Refrigerant vapor injection for distribution improvement in parallel flow heat exchanger manifolds | Alexander Lifson | 2013-09-10 |
| 8528359 | Economized refrigeration cycle with expander | Alexander Lifson | 2013-09-10 |
| 8424328 | Suction valve pulse width modulation control based on evaporator or condenser pressure | Alexander Lifson | 2013-04-23 |
| 8418486 | Refrigerant system with variable speed compressor and reheat function | Alexander Lifson | 2013-04-16 |
| 8381538 | Heat pump with intercooler | Alexander Lifson | 2013-02-26 |
| 8375741 | Refrigerant system with intercooler and liquid/vapor injection | Alexander Lifson | 2013-02-19 |
| 8375735 | Refrigeration systems with voltage modulated compressor motors and methods of their control | Alexander Lifson | 2013-02-19 |
| 8373099 | Heat pump with heat recovery | Alexander Lifson | 2013-02-12 |
| 8359873 | Oil return in refrigerant system | Alexander Lifson | 2013-01-29 |
| 8356491 | Refrigerant system with intercooler utilized for reheat function | Alexander Lifson | 2013-01-22 |
| 8356489 | Injection of refrigerant in system with expander | Alexander Lifson | 2013-01-22 |
| 8347643 | Indoor air quality improvement by re-evaporation control | Alexander Lifson | 2013-01-08 |
| 8337176 | Tandem compressors with common intermediate port | Alexander Lifson | 2012-12-25 |
| 8333088 | Heat exchanger design for improved performance and manufacturability | Alexander Lifson | 2012-12-18 |