Ching M. Chang

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Williamsville, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Knowledge based diagnostic advisory system and method for an air se...
- Patent number 5,557,549
- Issue date Sep 17, 1996
- Praxair Technology, Inc.
- Ching M. Chang
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Rotary fluid handling machine having reduced fluid leakage
- Patent number 4,472,107
- Issue date Sep 18, 1984
- Union Carbide Corporation
- Ching M. Chang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES