Inventor · disambiguated record
Changchin Yu
Also filed as: YU CHANGCHIN
7 granted patents·8 pending applications·2 citations·filing 2021–2025
70Inventor score
Files withQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD13HUBEI SAN’AN OPTOELECTRONICS CO LTD1QUANZHOU SAN’AN SEMICONDUCTOR TECH CO LTD1
Top patents by PatentIndex Score
15 records- 0191US11978839B2Light-emitting deviceQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2021·Granted May 7, 2024·2 cites·31 claims
- 0279US12324286B2Light-emitting deviceQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2024·Granted Jun 3, 2025·0 cites·20 claims
- 0378US2025294936A1Light-emitting deviceQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2025·Application pending·0 cites
- 0460US2024405185A1Light-emitting diode packaging moduleQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2024·Application pending·0 cites
- 0559US2023343906A1Led packaging device and preparation method thereforQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2023·Application pending·0 cites
- 0656US2023207754A1Light-emitting diode device and method for manufacturing the sameQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2023·Application pending·0 cites
- 0754US12002908B2Light-emitting packaging deviceQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2021·Granted Jun 4, 2024·0 cites·22 claims
- 0853US2024222589A1Light-emitting module, method for sorting the same, and display deviceHUBEI SAN’AN OPTOELECTRONICS CO LTD·Filed 2024·Application pending·0 cites
- 0953US2023275072A1Light-emitting deviceQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2023·Application pending·0 cites
- 1052US2023299252A1Light-emitting diode packageQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2023·Application pending·0 cites
- 1151US12080688B2Light-emitting diode packaging moduleQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2022·Granted Sep 3, 2024·0 cites·20 claims
- 1250US12237312B2Light-emitting diode packaging moduleQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2022·Granted Feb 25, 2025·0 cites·19 claims
- 1350US12230611B2Light-emitting device and display screen including the sameQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2022·Granted Feb 18, 2025·0 cites·24 claims
- 1449US12230612B2Light-emitting diode packaging module having encapsulated array of LED chipsQUANZHOU SANAN SEMICONDUCTOR TECH CO LTD·Filed 2022·Granted Feb 18, 2025·0 cites·20 claims
- 1546US2025219038A1Led device and light emitting apparatus including the sameQUANZHOU SAN’AN SEMICONDUCTOR TECH CO LTD·Filed 2025·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →