Inventor · disambiguated record
Lee-Chin Hsu Liu
Also filed as: LIU LEE-CHIN · LIU LEE-CHIN HSU
11 granted patents·1 pending application·629 citations·filing 1995–2008
93Inventor score
Top patents by PatentIndex Score
12 records- 0187US6185557B1Merge join processUNISYS CORP·Filed 1998·Granted Feb 6, 2001·112 cites·14 claims
- 0285US7089225B2Efficient heuristic approach in selection of materialized views when there are multiple matchings to an SQL queryIBM·Filed 2003·Granted Aug 8, 2006·51 cites·21 claims
- 0383US6397204B1Method, system, and program for determining the join ordering of tables in a join queryIBM·Filed 1999·Granted May 28, 2002·114 cites·33 claims
- 0483US5758149ASystem for optimally processing a transaction and a query to the same database concurrentlyUNISYS CORP·Filed 1995·Granted May 26, 1998·142 cites·35 claims
- 0579US6266660B1Secondary index searchUNISYS CORP·Filed 1998·Granted Jul 24, 2001·61 cites·15 claims
- 0671US6263331B1Hybrid hash join processUNISYS CORP·Filed 1998·Granted Jul 17, 2001·74 cites·29 claims
- 0770US7181446B2Query transformation for queries involving correlated subqueries having correlation join predicates with local filtering predicates involving predicate transitive closure and predicate pull-outIBM·Filed 2004·Granted Feb 20, 2007·16 cites·27 claims
- 0860US7487140B2Method for executing a query having multiple distinct key columnsIBM·Filed 2002·Granted Feb 3, 2009·7 cites·7 claims
- 0960US6513028B1Method, system, and program for searching a list of entries when search criteria is provided for less than all of the fields in an entryIBM·Filed 1999·Granted Jan 28, 2003·40 cites·31 claims
- 1053US7246115B2Materialized view signature and efficient identification of materialized view candidates for queriesIBM·Filed 2002·Granted Jul 17, 2007·12 cites·23 claims
- 1152US8041726B2System for executing a query having multiple distinct key columnsIBM·Filed 2008·Granted Oct 18, 2011·0 cites·17 claims
- 1242US2004122814A1Matching groupings, re-aggregation avoidance and comprehensive aggregate function derivation rules in query rewrites using materialized viewsIBM·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →