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US6728533B2 · kind B2 · utility
202Cited by
12References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2001 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Jun 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G9/0011
- WIPO fieldMeasurement
- WIPO sectorInstruments
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.