Inventor · disambiguated record
Fang-Hsiung Chang
Also filed as: CHANG FANG · CHANG FANG-HSIUNG
2 granted patents·1 pending application·30 citations·filing 1994–2022
59Inventor score
Top patents by PatentIndex Score
3 records- 0157US5421552AFoot-operated valveFiled 1994·Granted Jun 6, 1995·26 cites·6 claims
- 0247US2023382778A1Efficient nitrogen and phosphorus removal process system for mariculture tail water treatmentTIANJIN RESEARCH INST WATER TRANSP ENGINEERING MOT·Filed 2022·Application pending·0 cites
- 0324US5464190AFoot-operated valveFiled 1994·Granted Nov 7, 1995·4 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →