Prisma Skyltreklam AB
2Patents
0Active
2Granted
22Portfolio score
Filing activity: May 27, 1988 → Feb 19, 1992
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5161421A | Driving device for driving or operating elongate display members at signs for consecutive, repeated presentation of series of images | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4894645A | Incandescent matrix display with high frequency lamp driving | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.