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Pedro Celis
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Austin, TX, US
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last 30 patents
Information
Patent Grant
Efficient inter-task queue protocol
Patent number
6,341,302
Issue date
Jan 22, 2002
Compaq Information Technologies Group, L.P.
Pedro Celis
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Database query cost model optimizer
Patent number
6,330,552
Issue date
Dec 11, 2001
Compaq
Christopher M. Farrar
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Histogram synthesis modeler for a database query optimizer
Patent number
6,263,345
Issue date
Jul 17, 2001
Compaq Computers, Corporation
Christopher M. Farrar
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for optimizing database queries with improved per...
Patent number
6,021,405
Issue date
Feb 1, 2000
Tandem Computers, Inc.
Pedro Celis
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for optimizing database queries
Patent number
5,822,747
Issue date
Oct 13, 1998
Tandem Computers, Inc.
Goetz Graefe
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for database query optimization
Patent number
5,819,255
Issue date
Oct 6, 1998
Tandem Computers, Inc.
Pedro Celis
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for a complete SQL subquery elimination process
Patent number
5,724,570
Issue date
Mar 3, 1998
Tandem Computers Incorporated
Hansjorg Zeller
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Relational database system and method with high availability compli...
Patent number
5,717,911
Issue date
Feb 10, 1998
Tandem Computers, Inc.
Louise M. Madrid
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Relational database system and method with high data availability d...
Patent number
5,625,815
Issue date
Apr 29, 1997
Tandem Computers, Incorporated
Donald S. Maier
G06 - COMPUTING CALCULATING COUNTING