Inventor · disambiguated record
Jifang Wan
Also filed as: WAN JIFANG
4 granted patents·1 pending application·8 citations·filing 2022–2023
64Inventor score
Top patents by PatentIndex Score
5 records- 0171USD980386SWatering canWAN JIFANG·Filed 2022·Granted Mar 7, 2023·6 cites·1 claims
- 0259US2024093599A1Lost circulation detection devicePETROCHINA CO LTD·Filed 2023·Application pending·0 cites
- 0355USD988468SWatering canWAN JIFANG·Filed 2022·Granted Jun 6, 2023·2 cites·1 claims
- 0441US12258949B2Two-stroke pumping method and oil production deviceUNIV YANGTZE·Filed 2022·Granted Mar 25, 2025·0 cites·7 claims
- 0541US11851952B2Downhole displacement impact method and impact drilling toolUNIV YANGTZE·Filed 2022·Granted Dec 26, 2023·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →