Work Smart Energy Enterprises, Inc.

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Washington, DC, US

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Patents Grantslast 30 patents

Information Patent Grant
Solar air conditioner
- Patent number 6,513,339
- Issue date Feb 4, 2003
- Work Smart Energy Enterprises, Inc.
- William Leslie Kopko
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
High-efficiency air-conditioning system with high-volume air distri...
- Patent number 6,405,543
- Issue date Jun 18, 2002
- Work Smart Energy Enterprises Inc.
- William L. Kopko
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
High-efficiency air-conditioning system with high-volume air distri...
- Patent number 6,185,943
- Issue date Feb 13, 2001
- Work Smart Energy Enterprises, Inc.
- William L. Kopko
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Variable-speed drive for single-phase motors
- Patent number 6,121,749
- Issue date Sep 19, 2000
- Work Smart Energy Enterprises, Inc.
- Frank E. Wills
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

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