Inventor · disambiguated record
An-Kai Chang
Also filed as: CHANG AN-KAI
8 granted patents·1 pending application·4 citations·filing 2018–2024
74Inventor score
Files withSINTAI OPTICAL SHENZHEN CO LTD9
Top patents by PatentIndex Score
9 records- 0181US12117595B2Lens assemblySINTAI OPTICAL SHENZHEN CO LTD·Filed 2021·Granted Oct 15, 2024·1 cites·20 claims
- 0275US11187874B2Wide-angle lens assemblySINTAI OPTICAL SHENZHEN CO LTD·Filed 2019·Granted Nov 30, 2021·2 cites·20 claims
- 0368US11143842B2Optical lensSINTAI OPTICAL SHENZHEN CO LTD·Filed 2019·Granted Oct 12, 2021·1 cites·20 claims
- 0458US12411317B2Lens assemblySINTAI OPTICAL SHENZHEN CO LTD·Filed 2022·Granted Sep 9, 2025·0 cites·19 claims
- 0555US2024310610A1Wide-angle lens assemblySINTAI OPTICAL SHENZHEN CO LTD·Filed 2024·Application pending·0 cites
- 0648US12259529B2Lens assemblySINTAI OPTICAL SHENZHEN CO LTD·Filed 2021·Granted Mar 25, 2025·0 cites·18 claims
- 0745US11815666B2Wide-angle lens assembly including nine lenses of −−+++−++− or −−+++−+−+, or ten lenses of −−+++−−+++ or −−−+++−+−+ refractive powersSINTAI OPTICAL SHENZHEN CO LTD·Filed 2020·Granted Nov 14, 2023·0 cites·20 claims
- 0842US11079569B2Wide-angle lens assemblySINTAI OPTICAL SHENZHEN CO LTD·Filed 2018·Granted Aug 3, 2021·0 cites·19 claims
- 0942US11009681B2Photographing lensSINTAI OPTICAL SHENZHEN CO LTD·Filed 2018·Granted May 18, 2021·0 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →