Inventor · disambiguated record
Chen-Der Cheng
Also filed as: CHENG CHEN · CHENG CHEN-DER
1 granted patent·1 pending application·31 citations·filing 2001–2025
44Inventor score
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2 records- 0166US6805645B2Tooth contour structure for large sprocket set of bicycleAPEX BICYCLE COMPONENTS CORP L·Filed 2001·Granted Oct 19, 2004·31 cites·7 claims
- 0259US2025171085A1Front compartment structure of separate frame construction, separate frame construction and vehicleBYD CO LTD·Filed 2025·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →