Steven A. Kirk
29Patents
9h-index
31Co-inventors
75Inventor score
Filing activity: Jun 20, 1989 → Sep 29, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6341281B1 | Database system with methods for optimizing performance of correlated subqueries by reusing invariant results of operator tree | Emerging Cross-Sectional Technologies | 206 | Expired |
| US6691101B2 | Database system providing optimization of group by operator over a union all | Emerging Cross-Sectional Technologies | 104 | Expired |
| US5852821A | High-speed data base query method and apparatus | Emerging Cross-Sectional Technologies | 76 | Expired |
| US6823329B2 | Database system providing methodology for acceleration of queries involving functional expressions against columns having enumerated storage | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5720009A | Method of rule execution in an expert system using equivalence classes to group database objects | Physics | 22 | Expired |
| US5303332A | Language for economically building complex, large-scale, efficient, rule-based systems and sub-systems | Physics | 19 | Expired |
| US8321476B2 | Method and system for determining boundary values dynamically defining key value bounds of two or more disjoint subsets of sort run-based parallel processing of data from databases | Physics | 18 | Active |
| US5129037A | Neural network for performing beta-token partitioning in a RETE network | Physics | 14 | Expired |
| US5263127A | Method for fast rule execution of expert systems | Physics | 10 | Expired |
| US5179633A | Method and apparatus for efficiently implementing read-type procedural attachments in RETE-like pattern matching environment | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5267349A | Fast determination of subtype relationship in a single inheritance type hierarchy | Physics | 6 | Expired |
| US8843499B2 | Accelerating database queries comprising positional text conditions plus bitmap-based conditions | Physics | 5 | Active |
| US10007698B2 | Table parameterized functions in database | Physics | 5 | Active |
| US9317556B2 | Accelerating database queries containing bitmap-based conditions | Physics | 4 | Active |
| US10061792B2 | Tiered index management | Physics | 4 | Active |
| US7672925B2 | Accelerating queries using temporary enumeration representation | Emerging Cross-Sectional Technologies | 4 | Active |
| US8321429B2 | Accelerating queries using secondary semantic column enumeration | Physics | 4 | Active |
| US10706034B2 | Query access optimizations for tiered index architecture | Physics | 1 | Active |
| US11068484B2 | Accelerating queries with complex conditions using zone map enhancements | Physics | 0 | Active |
| US12111833B1 | Query acceleration for disjunctive equijoin conditions | Physics | 0 | Active |
| US9305080B2 | Accelerating queries using delayed value projection of enumerated storage | Physics | 0 | Active |
| US11176127B2 | Accelerating queries based on zone expression maps | Physics | 0 | Active |
| US10726008B2 | Accelerating database queries using enhanced partition elimination | Physics | 0 | Active |
| US10936567B2 | Accelerating queries based on zone condition tallies | Physics | 0 | Active |
| US8805891B2 | B-tree ordinal approximation | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.