Inventor · disambiguated record
Zefu Chen
Also filed as: CHEN ZEFU
2 granted patents·1 pending application·65 citations·filing 2000–2013
61Inventor score
Top patents by PatentIndex Score
3 records- 0189US6347724B1Automatic dispenser apparatusULTRACLENZ ENGINEERING GROUP·Filed 2000·Granted Feb 19, 2002·63 cites·31 claims
- 0249US9046902B2Power supply circuitCHEN ZEFU·Filed 2013·Granted Jun 2, 2015·2 cites·4 claims
- 0336US2002067044A1Cover latch for dispenser apparatusFiled 2000·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →