Inventor
ZENG ZHONGPING
US6 patents
Patents
6 patentsUS6719003B2Apr 13, 2004
Charge valve for an air conditioning system
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US6266971B1Jul 31, 2001
Refrigerant charge valve
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US6729659B2May 4, 2004
Flare fitting assembly with metal-to-metal line seal
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US6659426B2Dec 9, 2003
Charge valve in a high pressure air conditioning system
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US6481761B2Nov 19, 2002
Frusto-conical seal fitting
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US6564575B1May 20, 2003
Accumulator with inlet port comprising a deflector
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