Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6958166 | Frying apparatus with closed loop combustion control and method | — | 2005-10-25 |
| 4480152 | Methods and apparatus for protecting line relay contacts in a telephone switching system | — | 1984-10-30 |
| 4324954 | Dialing circuits and methods for electronic telephone sets | — | 1982-04-13 |
| 4282409 | Speech networks for telephone sets | — | 1981-08-04 |
| 4268723 | Circuits and methods for initializing the loop current of a telephone set | — | 1981-05-19 |
| 4251694 | Tone-ringing circuits and methods for telephone sets | — | 1981-02-17 |