Phonic Ear Inc.
7Patents
1Active
7Granted
32Portfolio score
Filing activity: Mar 10, 1983 → Nov 5, 2004 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5774791A | Low power wireless communication system employing magnetic control zones | Emerging Cross-Sectional Technologies | 93 | Expired |
| US5568516A | Very low power cordless headset system | Emerging Cross-Sectional Technologies | 88 | Expired |
| US5615229A | Short range inductively coupled communication system employing time variant modulation | Emerging Cross-Sectional Technologies | 71 | Expired |
| US5812598A | Hearing assist system employing time variant modulation transmission to hearing aid | Emerging Cross-Sectional Technologies | 65 | Expired |
| US6799018B1 | Wireless transmission communication system and portable microphone unit | Electricity | 56 | Expired |
| USD280022S | Hearing aid transducer or the like | General | 5 | Expired |
| US7822212B2 | Method and system for amplifying auditory sounds | Electricity | 4 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.