Dex Information Systems, Inc.
5Patents
0Active
5Granted
31Portfolio score
Filing activity: Feb 3, 1995 → Mar 5, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5729730A | Method and apparatus for improved information storage and retrieval system | Emerging Cross-Sectional Technologies | 127 | Expired |
| US6151604A | Method and apparatus for improved information storage and retrieval system | Emerging Cross-Sectional Technologies | 82 | Expired |
| US5893087A | Method and apparatus for improved information storage and retrieval system | Emerging Cross-Sectional Technologies | 72 | Expired |
| US5790848A | Method and apparatus for data access and update in a shared file environment | Emerging Cross-Sectional Technologies | 67 | Expired |
| US5850522A | System for physical storage architecture providing simultaneous access to common file by storing update data in update partitions and merging desired updates into common partition | Physics | 40 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.