Fred Koo

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North York, CA

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Patents Grantslast 30 patents

Information Patent Grant
Redundant join elimination and sub-query elimination using subsumption
- Patent number 7,587,383
- Issue date Sep 8, 2009
- International Business Machines Corporation
- Fred Koo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optimizing database query by generating, determining the type of de...
- Patent number 6,983,275
- Issue date Jan 3, 2006
- International Business Machines Corporation
- Fred Koo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of optimally determining lossless joins
- Patent number 6,601,063
- Issue date Jul 29, 2003
- International Business Machines Corporation
- Fred Koo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of optimally determining lossless joins
- Patent number 6,438,542
- Issue date Aug 20, 2002
- International Business Machines Corporation
- Fred Koo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for achieving uniform data distribution in a p...
- Patent number 5,970,495
- Issue date Oct 19, 1999
- International Business Machines Corporation
- Chaitanya K. Baru
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for implementing partial declustering in a par...
- Patent number 5,878,409
- Issue date Mar 2, 1999
- International Business Machines Corporation
- Chaitanya Baru
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Optimizing database query performance by deriving query predicates
- Publication number 20030195881
- Publication date Oct 16, 2003
- International Business Machines Corporation
- Fred Koo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Redundant join elimination and sub-query elimination using subsumption
- Publication number 20030167258
- Publication date Sep 4, 2003
- Fred Koo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of optimally determining lossless joins
- Publication number 20020147714
- Publication date Oct 10, 2002
- IBM CORPORATION
- Fred Koo
- G06 - COMPUTING CALCULATING COUNTING