Inventor · disambiguated record
Jingguan Du
Also filed as: Du Jingguan
3 granted patents·1 pending application·0 citations·filing 2023–2024
43Inventor score
Technology areasB01D
Files withTIANJIN YUANZHI ENVIRONMENTAL TECH CO LTD3TIANJIN YUANZHI ENVIRONMENTAL PROTECTION TECH CO LTD1
Top patents by PatentIndex Score
4 records- 0154US2025050248A1Dual-Ended CartridgeTIANJIN YUANZHI ENVIRONMENTAL TECH CO LTD·Filed 2023·Application pending·0 cites
- 0237USD1103336SWater filterTIANJIN YUANZHI ENVIRONMENTAL PROTECTION TECH CO LTD·Filed 2024·Granted Nov 25, 2025·0 cites·1 claims
- 0329USD1083025SRefrigerator filterTIANJIN YUANZHI ENVIRONMENTAL TECH CO LTD·Filed 2023·Granted Jul 8, 2025·0 cites·1 claims
- 0429USD1083024SRefrigerator filterTIANJIN YUANZHI ENVIRONMENTAL TECH CO LTD·Filed 2023·Granted Jul 8, 2025·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →