Inventor · disambiguated record
Chang-Yu Tsai
Also filed as: TSAI CHANG CHI · TSAI CHANG-YU
14 granted patents·9 pending applications·33 citations·filing 2002–2023
88Inventor score
Top patents by PatentIndex Score
23 records- 0195US11600746B2Semiconductor device comprising electron blocking layerEPISTAR CORP·Filed 2021·Granted Mar 7, 2023·4 cites·18 claims
- 0294US12064863B1Tool box structureTSAI CHANG YU·Filed 2023·Granted Aug 20, 2024·11 cites·10 claims
- 0393US10971652B2Semiconductor device comprising electron blocking layersEPISTAR CORP·Filed 2019·Granted Apr 6, 2021·6 cites·20 claims
- 0489US11787018B2Rotation wrenchTSAI CHANG YU·Filed 2022·Granted Oct 17, 2023·2 cites·6 claims
- 0588US11056434B2Semiconductor device having specified p-type dopant concentration profileEPISTAR CORP·Filed 2018·Granted Jul 6, 2021·6 cites·19 claims
- 0684US10731833B2Illumination deviceQISDA CORP·Filed 2019·Granted Aug 4, 2020·4 cites·15 claims
- 0778US12300764B2Semiconductor device comprising electron blocking layerEPISTAR CORP·Filed 2023·Granted May 13, 2025·0 cites·20 claims
- 0875US12439734B2Semiconductor device comprising electron blocking layerEPISTAR CORP·Filed 2023·Granted Oct 7, 2025·0 cites·18 claims
- 0968US11688690B2Semiconductor device comprising electron blocking layerEPISTAR CORP·Filed 2021·Granted Jun 27, 2023·0 cites·12 claims
- 1062US12491567B2Hand tool holding structureTSAI CHANG YU·Filed 2023·Granted Dec 9, 2025·0 cites·10 claims
- 1159US2024391061A1Pliers StructureTSAI CHANG YU·Filed 2023·Application pending·0 cites
- 1258US2024424649A1Hand Tool StructureTSAI CHANG YU·Filed 2023·Application pending·0 cites
- 1357US12311525B2Hand tool holder structureTSAI CHANG YU·Filed 2023·Granted May 27, 2025·0 cites·9 claims
- 1456US2024383112A1Hex Wrench StructureTSAI CHANG YU·Filed 2023·Application pending·0 cites
- 1556US2009322026A1LED Chess SetSUN CHING-CHERNG·Filed 2008·Application pending·0 cites
- 1655US12455153B2Tape structureTSAI CHANG YU·Filed 2023·Granted Oct 28, 2025·0 cites·7 claims
- 1749US2009279053A1Apparatus for Continuously Projecting Images and Method thereforSUN CHING-CHERNG·Filed 2008·Application pending·0 cites
- 1847US2009273289A1LED Light String for Decoration with Units having Replaceable LED and HousingSUN CHING-CHERNG·Filed 2008·Application pending·0 cites
- 1946US11629845B2Clamp lampQISDA CORP·Filed 2022·Granted Apr 18, 2023·0 cites·18 claims
- 2044US9826592B2Lamp having illumination modules with different percentage of luminance adjustmentQISDA (SUZHOU) CO LTD·Filed 2016·Granted Nov 21, 2017·0 cites·19 claims
- 2144US2003141211A1Structure of a tool-displaying deviceFiled 2002·Application pending·0 cites
- 2243US2018281170A1Tool holder assemblyTSAI CHANG YU·Filed 2017·Application pending·0 cites
- 2332US2017184492A1Gas analyzer systemCOMDEK IND CORP·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →