Northern Microdesign, Inc.
7Patents
6Active
7Granted
41Portfolio score
Filing activity: Oct 24, 1988 → Jul 3, 2013 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4864274A | Remote reading thermostat | Physics | 14 | Expired |
| US8116714B2 | Use of powerlines for transmission of high frequency signals | Electricity | 4 | Active |
| US8989243B1 | Power line device with directional coupler | Electricity | 3 | Active |
| US8483656B2 | Use of powerlines for transmission of high frequency signals | Electricity | 2 | Active |
| US9391669B2 | Communication using multiple conductor cable | Electricity | 1 | Active |
| US8489086B2 | Use of powerlines for transmission of high frequency signals | Electricity | 0 | Active |
| US8488654B1 | Spread spectrum communications using complex chip sequences | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.