Zhone Technologies, Inc.
5Patents
0Active
5Granted
30Portfolio score
Filing activity: Feb 17, 1999 → Jun 20, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6667973B1 | Flexible SONET access and transmission systems | Emerging Cross-Sectional Technologies | 85 | Expired |
| US6768745B1 | Flexible SONET access and transmission system | Emerging Cross-Sectional Technologies | 83 | Expired |
| US7197010B1 | System for real time voice quality measurement in voice over packet network | Electricity | 31 | Expired |
| US6744887B1 | Acoustic echo processing system | Electricity | 24 | Expired |
| US6690644B1 | Mechanism for 1:1, 1+1, and UPSR path-switched protection switching | Electricity | 17 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.