Assignee
HWANG BIING YIH
TW·4 granted patents·113 citations·filing 1987–2010
Top patents by PatentIndex Score
4 records- 0180US4997320ATool for forming a circumferential projection in a pipeHWANG BIING YIH·Filed 1990·Granted Mar 5, 1991·48 cites·2 claims
- 0278US8397747B2Balanced water-intake control valveHWANG BIING-YIH·Filed 2010·Granted Mar 19, 2013·6 cites·5 claims
- 0369US4792160AStructure for pipe fittingsHWANG BIING YIH·Filed 1987·Granted Dec 20, 1988·36 cites·1 claims
- 0462US4796650AStructure for a float valve assemblyHWANG BIING YIH·Filed 1987·Granted Jan 10, 1989·23 cites·4 claims
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