DFS Linkages, Inc.
2Patents
0Active
2Granted
22Portfolio score
Filing activity: Apr 26, 2001 → Nov 10, 2005
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7047415B2 | System and method for widely witnessed proof of time | Electricity | 32 | Expired |
| US7210035B2 | System and method for graphical indicia for the certification of records | Electricity | 28 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.