Cidco Incorporated
12Patents
0Active
12Granted
31Portfolio score
Filing activity: Feb 13, 1995 → Jul 14, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD405447S | Telephone set | General | 55 | Expired |
| USD410005S | Telephone set | General | 42 | Expired |
| US5836009A | Caller ID telephone with signal attenuation | Electricity | 38 | Expired |
| US5680447A | Circuit and method for responding to third party calls in a telephone system having call waiting | Electricity | 37 | Expired |
| US5583924A | Caller ID and call waiting for multiple CPES on a single telephone line | Electricity | 27 | Expired |
| US6122353A | Method and apparatus for detecting a telephone CPE alerting signal | Electricity | 24 | Expired |
| US5699417A | Text transmission using DTMF signalling | Electricity | 18 | Expired |
| USD397112S | Telephone set | General | 15 | Expired |
| US5754602A | Multiple key press selection for repertory dialing | Electricity | 13 | Expired |
| US5574777A | Caller ID and call waiting for multiple CPES on a single telephone line | Electricity | 12 | Expired |
| US5862212A | Method and structure for detecting a customer premises equipment alerting signal | Electricity | 11 | Expired |
| US5745557A | CIDCW primary/secondary arbitration | Electricity | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.