M2COMMUNICATION INC.
15Patents
4Active
15Granted
37Portfolio score
Filing activity: Mar 17, 1978 → Dec 5, 2019
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5524193A | Interactive multimedia annotation method and apparatus | Electricity | 195 | Expired |
| US5923731A | Telephone monitoring and alarm device | Electricity | 119 | Expired |
| US6377668B1 | Internet priority call device | Electricity | 50 | Expired |
| USD603836S1 | Pager | General | 27 | Expired |
| US6233330A | Telephone call screening device with power and telephone line failure alert, call answering, call routing, and caller ID | Electricity | 25 | Expired |
| US5111502A | Telephone line bridging sensor | Electricity | 9 | Expired |
| US6236384A | Method to change the viewing angle in a fixed liquid crystal display by changing the pre-tilt angle in the liquid crystal layer with a bias voltage | Physics | 7 | Expired |
| US6195423A | Two line voice/data switch | Electricity | 5 | Expired |
| US10164572B2 | Method of monitoring clock and oscillator module thereof | Electricity | 5 | Active |
| US7177143B1 | Molded electronic components | Electricity | 4 | Expired |
| US4167709A | Push-pull amplifier output circuit | Electricity | 3 | Expired |
| US7184537B2 | Apparatus and method for CNG detection with call waiting | Electricity | 2 | Expired |
| US8630618B2 | Real time charging of short messages originated by roaming prepaid subscribers | Electricity | 1 | Active |
| US10019022B2 | Level shifting module and power circuit and method of operating level shifting module | Physics | 1 | Active |
| US12148326B2 | Electronic label and display method thereof | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.