Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Guy M. Lohman — 86 Patents

IBM: 86 patents #750 of 70,183Top 2%
San Jose, CA: #350 of 32,062 inventorsTop 2%
California: #2,988 of 386,348 inventorsTop 1%
Overall (All Time): #19,688 of 4,157,543Top 1%
86 Patents All Time

Issued Patents All Time

Showing 76–86 of 86 patents

Patent #TitleCo-InventorsDate
6725212 Platform-independent method and system for graphically presenting the evaluation of a query in a database management system Tanya Couch, Stefan B. Edlund, George Lapis, Berthold Reinwald 2004-04-20
6665663 Outerjoin and antijoin reordering using extended eligibility lists Bruce G. Lindsay, Mir Hamid Pirahesh, Jun Rao 2003-12-16
6356889 Method for determining optimal database materializations using a query optimizer Gary Valentin 2002-03-12
6345267 Method and system for look ahead query evaluation planning based on interesting partition properties Eugene J. Shekita, David E. Simmen, Monica Sachiye Urata 2002-02-05
6112198 Optimization of data repartitioning during parallel query optimization Mir Hamid Pirahesh, Eugene J. Shekita, David E. Simmen, Monica Sachiye Urata 2000-08-29
6092062 Relational database query optimization to perform query evaluation plan, pruning based on the partition properties Eugene J. Shekita, David E. Simmen, Monica Sachiye Urata 2000-07-18
5960428 Star/join query optimization Bruce G. Lindsay, Mir Hamid Pirahesh, Eugene J. Shekita, David E. Simmen, Monica Sachiye Urata 1999-09-28
5930785 Method for detecting and optimizing queries with encoding/decoding tables Bernhard Schiefer, Monica Sachiye Urata 1999-07-27
5548754 Optimization of SQL queries using early-out join transformations Mir Hamid Pirahesh, Ting Yu Leung, Eugene J. Shekita, David E. Simmen 1996-08-20
5548758 Optimization of SQL queries using early-out join transformations of column-bound relational tables Mir Hamid Pirahesh, Ting Yu Leung, Eugene J. Shekita, David E. Simmen 1996-08-20
5301317 System for adapting query optimization effort to expected execution time Kiyoshi Ono, John Palmer 1994-04-05