David B. Pitfield
8Patents
4h-index
1Co-inventors
39Inventor score
Filing activity: May 11, 2001 → Mar 14, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7987217B2 | Transaction-aware caching for document metadata | Electricity | 55 | Expired |
| US7185005B1 | Nested transactions in a file system | Emerging Cross-Sectional Technologies | 18 | Expired |
| US7203709B2 | Transaction-aware caching for access control metadata | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7240329B1 | Policies on a per instance basis | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7421541B2 | Version management of cached permissions metadata | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7389493B1 | Categories on a per instance basis | Electricity | 3 | Expired |
| US7725878B1 | Property bundles on a per instance basis | Physics | 3 | Expired |
| US8745017B2 | Transaction-aware caching for access control metadata | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.