Inventor · disambiguated record
Yun-Chuan Chang
Also filed as: CHANG YUN-CHUAN
4 granted patents·3 pending applications·132 citations·filing 1999–2001
78Inventor score
Top patents by PatentIndex Score
7 records- 0190US6299186B1Antishock structure of scooterFiled 2000·Granted Oct 9, 2001·78 cites·1 claims
- 0269US6279930B1Structure of scooterFiled 1999·Granted Aug 28, 2001·43 cites·1 claims
- 0355US6341768B1Structure of torsion shock absorberFiled 2000·Granted Jan 29, 2002·8 cites·3 claims
- 0443US6419255B1Driving structure between front and rear wheels of a vehicleFiled 2001·Granted Jul 16, 2002·3 cites·1 claims
- 0539US2003114274A1Collapsible exercise bicycleFiled 2001·Application pending·0 cites
- 0638US2002089137A1Folding structure of scooterFiled 2001·Application pending·0 cites
- 0738US2002096842A1Structure of multifunctional scooterFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →