Inventor · disambiguated record
Ya-Chen Cheng
Also filed as: CHENG YA-CHEN
1 granted patent·2 pending applications·0 citations·filing 2019–2022
1Inventor score
Files withFENRI CO LTD3
Top patents by PatentIndex Score
3 records- 0148US2021164214A1Automatic sewage regulation system and regulating method thereofFENRI CO LTD·Filed 2021·Application pending·0 cites
- 0242US12480301B2Automatic sewage regulation system and regulating method thereofFENRI CO LTD·Filed 2022·Granted Nov 25, 2025·0 cites·8 claims
- 0334US2020378105A1Automatic sewage regulation system and regulating method thereofFENRI CO LTD·Filed 2019·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →