Numa Corporation
4Patents
0Active
4Granted
25Portfolio score
Filing activity: Nov 14, 1983 → Jan 25, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4578571A | Portable bar code scanning device and method | Physics | 108 | Expired |
| US5260730A | Optical overhead projector for electronic images | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4930886A | Opaque adapter for overhead projector | Emerging Cross-Sectional Technologies | 0 | Expired |
| US4912752A | Optical projector for transparencies and opaques | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.