Inventor · disambiguated record
Tsang-Chang Hwang
Also filed as: HWANG TSANG-CHANG
4 granted patents·365 citations·filing 1994–2002
83Inventor score
Top patents by PatentIndex Score
4 records- 0193US6036056AAutomatic soap dispensing deviceFiled 1997·Granted Mar 14, 2000·131 cites·2 claims
- 0292US5492247AAutomatic soap dispenserFiled 1994·Granted Feb 20, 1996·143 cites·3 claims
- 0390US6659420B2Manual and automatic flow control valveFiled 2002·Granted Dec 9, 2003·50 cites·7 claims
- 0484US5611465AAutomatic toilet bowl cleanerFiled 1995·Granted Mar 18, 1997·41 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →