Sigma Security Inc.
2Patents
0Active
2Granted
25Portfolio score
Filing activity: Mar 1, 1984 → Sep 7, 1984
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4663612A | Pattern-comparing security tag detection system | Physics | 22 | Expired |
| US4686154A | Security system label | Emerging Cross-Sectional Technologies | 19 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.