Communications Manufacturing Company
17Patents
0Active
17Granted
32Portfolio score
Filing activity: Nov 13, 1974 → Jul 23, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4837811A | Telephone technician's terminals | Electricity | 62 | Expired |
| US5896569A | Wireless access to telephone network dial tone | Electricity | 39 | Expired |
| US5377259A | Data terminal having program language support library, and related method | Electricity | 30 | Expired |
| US5903817A | Automated hard-copy mobile remote communication apparatus, system and method | Physics | 29 | Expired |
| US6201853A | Telephone technician's remote assist apparatus and method | Electricity | 26 | Expired |
| US5025466A | Telephone test instrument | Electricity | 23 | Expired |
| US3992699A | First-in/first-out data storage system | Physics | 11 | Expired |
| US5235629A | Apparatus for telephone line checking | Electricity | 8 | Expired |
| US4022987A | Coin telephone station simulator and condition indicator | Electricity | 6 | Expired |
| US5903624A | Data terminal for telephone circuits | Electricity | 5 | Expired |
| US6442239B1 | Telephone line longitudinal balance tester and method | Electricity | 4 | Expired |
| USD247712S | Hand-held light and magnifier | General | 4 | Expired |
| US4167682A | Overshoot suppression circuitry for ternary pulses | Electricity | 4 | Expired |
| US4070646A | Pulse error detector | Electricity | 3 | Expired |
| US4991195A | Apparatus and method for testing a telephone circuit protector | Electricity | 2 | Expired |
| US4095058A | Telephone switching system test set | Electricity | 0 | Expired |
| US4147901A | Relay margin test set | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.