ZHEJIANG SANHUA CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING469

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8844569 Electric three-way valveOct 25, 12Sep 30, 14[F16K, F25B]
5911242 Reversing valve and methodSep 16, 94Jun 15, 99[F16K]
5878781 Reversing valve and methodJun 06, 95Mar 09, 99[F16K]
5507315 Reversing valve and methodJun 06, 95Apr 16, 96[F16K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0000,768 REFRIGERATION SYSTEM AND BALL VALVE THEREOFAbandonedDec 31, 12Jan 01, 15[F16K, F25B]
2014/0175,315 FLOW-ADJUSTING VALVEAbandonedJun 26, 12Jun 26, 14[F16K]
2013/0298,597 REFRIGERATING SYSTEM AND THERMOSTATIC EXPANSION VALVE THEREOFAbandonedJan 12, 12Nov 14, 13[F25B]
7243900 Ball valveExpiredMay 18, 05Jul 17, 07[F16K]

Top Inventors for This Owner

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