Inventor · disambiguated record
De-Fu Chen
Also filed as: CHEN DE F · CHEN DE-FU
4 granted patents·3 pending applications·29 citations·filing 2001–2022
71Inventor score
Top patents by PatentIndex Score
7 records- 0190US11961489B1Scan driving circuit and operation method thereofINTERFACE TECH CHENGDU CO LTD·Filed 2022·Granted Apr 16, 2024·2 cites·20 claims
- 0277US6595486B2Non-refillable valveDISCOUNT REFRIGERANTS INC·Filed 2001·Granted Jul 22, 2003·23 cites·22 claims
- 0355US12125435B2Pixel circuit with pulse width compensation and operation method thereofINTERFACE TECH CHENGDU CO LTD·Filed 2022·Granted Oct 22, 2024·0 cites·19 claims
- 0448US6808159B1Non-refillable valveDISCOUNT REFRIGERANTS INC·Filed 2003·Granted Oct 26, 2004·4 cites·23 claims
- 0543US2019063053A1Anti-siphon structure for tankless rpessure flushing toiletRUNNER XIAMEN CORP·Filed 2018·Application pending·0 cites
- 0642US2018328014A1Low-noise pressure flushing system and toilet device including and utilizing the sameRUNNER XIAMEN CORP·Filed 2018·Application pending·0 cites
- 0737US2005082501A1Non-refillable valveDISCOUNT REFRIGERANTS INC·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →