Inventor · disambiguated record
Yifei Song
Also filed as: SONG YIFEI
2 granted patents·2 pending applications·0 citations·filing 2010–2025
23Inventor score
Top patents by PatentIndex Score
4 records- 0167US12381286B2Ionic liquid/polymer composite film, and preparation method therefor and use thereofUNIV HUAZHONG SCIENCE TECH·Filed 2025·Granted Aug 5, 2025·0 cites·8 claims
- 0238US9445168B2Electronic device and direction switching method of the electronic deviceLENOVO BEIJING CO LTD·Filed 2013·Granted Sep 13, 2016·0 cites·22 claims
- 0336US2012170002A1Led projector and methodOUDERKIRK ANDREW J·Filed 2010·Application pending·0 cites
- 0435US2022247891A1Processing method and processing deviceLENOVO BEIJING LTD·Filed 2021·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →