Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10845097 | Refrigeration system having a variable speed compressor | Qi Wang, Todd Swift | 2020-11-24 |
| 10816243 | Refrigeration system having a variable speed compressor | Qi Wang, Todd Swift | 2020-10-27 |
| 10072876 | Refrigeration system having a variable speed compressor | Qi Wang, Todd Swift | 2018-09-11 |
| 9835360 | Refrigeration system having a variable speed compressor | Qi Wang, Todd Swift | 2017-12-05 |
| 8537018 | Refrigeration system management and information display | Michael W. Brown, Norman Davies | 2013-09-17 |
| 8011191 | Refrigeration system having a variable speed compressor | Qi Wang, Todd Swift | 2011-09-06 |
| 7850924 | User notification of tank type for trigas (CO2/O2/N2 systems) | Bryan Elwood | 2010-12-14 |
| 7712320 | Compressor operation following sensor failure | Bryan Elwood | 2010-05-11 |
| 7552029 | Equipment monitoring system and method | Bryan Elwood, Charles G. Butts | 2009-06-23 |
| 7433890 | Method and apparatus for storing and retrieving data stored within an associated piece of equipment | Bryan Elwood, Walter Tipton, Ronald W. Luyckx | 2008-10-07 |
| 7152455 | Rapid gas recovery in an incubator system | Byran M. Elwood | 2006-12-26 |
| 7019656 | Empty gas supply tank pending warning | Bryan Elwood | 2006-03-28 |
| 6975967 | CO2/O2 incubator predictive failure for CO2 and O2 sensors | Bryan Elwood, David Cartwright, Earl Robertson | 2005-12-13 |
| 6882949 | Method and apparatus for testing heat pumps | Charles G. Butts, Mark R. Lunsford | 2005-04-19 |
| 6877328 | Compressor operation following sensor failure | Bryan Elwood | 2005-04-12 |
| 6843100 | Thermal conductivity measurement of carbon dioxide gas with relative humidity and temperature compensation | Charles G. Butts, Bryan Elwood | 2005-01-18 |
| 6831564 | Low supply tank pressure warning | Bryan Elwood | 2004-12-14 |
| 6805172 | Enhanced/proactive CO2/O2 gas control | Bryan Elwood | 2004-10-19 |
| 6694204 | Method and apparatus for accessing and executing internal diagnostic tests stored on a piece of equipment | Bryan Elwood, Walter Tipton, Ronald W. Luyckx | 2004-02-17 |
| 6601396 | Freezer defrost method and apparatus | Chuan Weng | 2003-08-05 |
| 6482637 | Rapid gas recovery in an incubator system | Byran M. Elwood | 2002-11-19 |
| 6477849 | Method and apparatus for testing heat pumps | Charles G. Butts, Mark R. Lunsford | 2002-11-12 |
| 6100673 | Voltage control device for increasing or decreasing voltage to a load | Bryan Elwood, Steven Michael Region | 2000-08-08 |