Assignee
TSAI CHEN-HSIEN
4 granted patents·77 citations·filing 1988–1990
Top patents by PatentIndex Score
4 records- 0186USD327943SAdjustable spray nozzle for a water hoseTSAI CHEN-HSIEN·Filed 1988·Granted Jul 14, 1992·32 cites·1 claims
- 0272USD331499SCleaning brushTSAI CHEN-HSIEN·Filed 1990·Granted Dec 8, 1992·18 cites·1 claims
- 0355USD337205SCleaning brushTSAI CHEN-HSIEN·Filed 1990·Granted Jul 13, 1993·9 cites·1 claims
- 0449US5033509AStructure of water flow control deviceTSAI CHEN HSIEN·Filed 1990·Granted Jul 23, 1991·18 cites·3 claims
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