Method for storing sparse hierarchical data in a relational database
US6438549B1 · kind B1 · utility
89Cited by
15References
14Claims
0Family size
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Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99943
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.