Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10477324 | Test apparatus for binaurally-coupled acoustic devices | John W. Cole, Jacobus A. Jonkman, Jonathan M. Pietrobon | 2019-11-12 |
| 10171920 | Test apparatus for binaurally-coupled acoustic devices | John W. Cole, Jacobus A. Jonkman, Jonathan M. Pietrobon | 2019-01-01 |
| 9961455 | Test apparatus for binaurally-coupled acoustic devices | John W. Cole, Jacobus A. Jonkman, Jonathan M. Pietrobon | 2018-05-01 |
| 9860652 | Test apparatus for binaurally-coupled acoustic devices | John W. Cole, Jacobus A. Jonkman, Jonathan M. Pietrobon | 2018-01-02 |
| 5131046 | High fidelity hearing aid amplifier | Mead C. Killion, Norman P. Matzen, Clyde M. Brown, Jr., James B. Compton, Steven J. Iseberg +2 more | 1992-07-14 |
| 4719430 | Low voltage class B amplifier with low value decoupling capacitors | — | 1988-01-12 |
| 4633166 | Buffer circuit suitable for low voltage operation | — | 1986-12-30 |
| 4622692 | Noise reduction system | — | 1986-11-11 |
| 4506169 | Peak amplitude detector | — | 1985-03-19 |
| 4480745 | Interlocking modular display rack system, component units therefor, and methods | David B. Loge, Kevin J. Migdal | 1984-11-06 |
| 4368804 | Check out lane display barrier | — | 1983-01-18 |
| D259315 | Multi-unit belt display fixture | Allan L. Ford | 1981-05-26 |
| 4253576 | Belt fixture and method of using same | Allan L. Ford | 1981-03-03 |
| D256199 | Merchandise display rack | Robert P. Burke, Jack Gallner | 1980-08-05 |