Inventor · disambiguated record
Changan Han
Also filed as: HAN CHANGAN
9 granted patents·1 pending application·89 citations·filing 2017–2023
87Inventor score
Technology areasG06F
Files withAMAZON TECH INC10
Top patents by PatentIndex Score
10 records- 0196US11561864B1Creating database clones at a specified point-in-timeAMAZON TECH INC·Filed 2020·Granted Jan 24, 2023·11 cites·20 claims
- 0295US11455290B1Streaming database change data from distributed storageAMAZON TECH INC·Filed 2020·Granted Sep 27, 2022·21 cites·20 claims
- 0395US11341001B1Unlimited database change capture for online database restoresAMAZON TECH INC·Filed 2020·Granted May 24, 2022·6 cites·20 claims
- 0492US11210184B1Online restore to a selectable prior state for database enginesAMAZON TECH INC·Filed 2017·Granted Dec 28, 2021·18 cites·20 claims
- 0592US10909143B1Shared pages for database copiesAMAZON TECH INC·Filed 2017·Granted Feb 2, 2021·18 cites·20 claims
- 0689US12130798B1Variable reclamation of data copiesAMAZON TECH INC·Filed 2017·Granted Oct 29, 2024·7 cites·20 claims
- 0787US11573969B1Adding a read-only query engine to perform queries to a point-in-time of a write-accessible databaseAMAZON TECH INC·Filed 2020·Granted Feb 7, 2023·3 cites·20 claims
- 0885US11914571B1Optimistic concurrency for a multi-writer databaseAMAZON TECH INC·Filed 2018·Granted Feb 27, 2024·5 cites·20 claims
- 0966US12072900B2Adding a read-only query engine to perform queries to a point-in-time of a write-accessible databaseAMAZON TECH INC·Filed 2023·Granted Aug 27, 2024·0 cites·20 claims
- 1060US2022114064A1Online restore for database enginesAMAZON TECH INC·Filed 2021·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →