David E. Walrath
12Patents
5h-index
8Co-inventors
55Inventor score
Filing activity: Sep 8, 1997 → Aug 11, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| 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 |
| US6109293A | Split venturi, axially-rotated valve | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6279595A | Increased flow, split venturi valve system | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6026845A | Flow, split Venturi, axially-rotated valve | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6557576B2 | Apparatus and method of flow control through a valve | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7672925B2 | Accelerating queries using temporary enumeration representation | Emerging Cross-Sectional Technologies | 4 | Active |
| US9317556B2 | Accelerating database queries containing bitmap-based conditions | Physics | 4 | Active |
| US8321429B2 | Accelerating queries using secondary semantic column enumeration | Physics | 4 | Active |
| US9305080B2 | Accelerating queries using delayed value projection of enumerated storage | Physics | 0 | Active |
| US8548980B2 | Accelerating queries based on exact knowledge of specific rows satisfying local conditions | Physics | 0 | Active |
| US10467228B2 | Accelerating database queries using equivalence union enumeration | Physics | 0 | Active |
| US10642833B2 | Accelerating database queries using composite union enumeration | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.