Inventor · disambiguated record
Songjian Yao
Also filed as: YAO SONGJIAN
3 granted patents·2 pending applications·11 citations·filing 2021–2022
60Inventor score
Files withSHENZHEN DONGZHENG OPTICAL TECH CO LTD5
Top patents by PatentIndex Score
5 records- 0180USD995611SCamera lensSHENZHEN DONGZHENG OPTICAL TECH CO LTD·Filed 2021·Granted Aug 15, 2023·9 cites·1 claims
- 0259USD985658SCamera lensSHENZHEN DONGZHENG OPTICAL TECH CO LTD·Filed 2021·Granted May 9, 2023·2 cites·1 claims
- 0343US11803100B2Method and system for acquiring operating parameters of photographic lensSHENZHEN DONGZHENG OPTICAL TECH CO LTD·Filed 2021·Granted Oct 31, 2023·0 cites·10 claims
- 0443US2025328061A1Lens mount replacement deviceSHENZHEN DONGZHENG OPTICAL TECH CO LTD·Filed 2022·Application pending·0 cites
- 0537US2024048831A1Tele-converter structure with adjustable back focal lengthSHENZHEN DONGZHENG OPTICAL TECH CO LTD·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →