Inventor · disambiguated record
Huan-Chang Fan
Also filed as: FAN HUAN-CHANG
3 granted patents·1 pending application·38 citations·filing 2001–2005
69Inventor score
Files withFAN HUAN-CHANG2
Top patents by PatentIndex Score
4 records- 0165US6827294B1External supply systemFiled 2003·Granted Dec 7, 2004·22 cites·1 claims
- 0258US6420737B1External infrared rays control switch device for controlling output water on faucetsFiled 2001·Granted Jul 16, 2002·14 cites·6 claims
- 0334US2007023332A1Automatic supply filtered water adapting systemFAN HUAN-CHANG·Filed 2005·Application pending·0 cites
- 0421USD517173SInfrared sensitive water feederFAN HUAN-CHANG·Filed 2005·Granted Mar 14, 2006·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →