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| Number | Title | Issue Date |
| 7945423 | Method and system for evaluating the efficiency of an air conditioning apparatus The applicant describes a system and methods of calculating the overall operating efficiency of an air conditioning chiller that evaluates efficiency of the component parts of the chiller and generates an overall efficiency based on these component efficiency values... | 05/17/2011 |
| 7349824 | Method and system for evaluating the efficiency of an air conditioning apparatus The applicant describes a system and methods of calculating the overall operating efficiency of an air conditioning chiller that evaluates efficiency of the component parts of the chiller and generates an overall efficiency based on these component efficiency values... | 03/25/2008 |
