Assignee
COLONIAL DATA TECHNOLOGIES COR
US·2 granted patents·120 citations·filing 1990–1994
Technology mixH04M2
Top patents by PatentIndex Score
2 records- 0173US5228080AMethod and apparatus for processing an incoming telephone call signal which may include a data messageCOLONIAL DATA TECHNOLOGIES COR·Filed 1990·Granted Jul 13, 1993·89 cites·37 claims
- 0259US5649002AMethod and apparatus for detecting a telephone CPE alerting signalCOLONIAL DATA TECHNOLOGIES COR·Filed 1994·Granted Jul 15, 1997·31 cites·44 claims
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