Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7251321 | Crescendo telephone ringer | Ronald S. Lesniak, Maxim Bakaleynik, Mario E. Jauregui | 2007-07-31 |
| D531613 | Telephone | Ronald S. Lesniak, Elena Pimkina, Gloria I. Seamons, Sean K. Horita, Temujin Kuechle +1 more | 2006-11-07 |
| 6567512 | Electronic programmer for telephones with auto-dial | William G. Marks, Mario E. Jauregui, Charles R. Jackson, Maxim Bakaleynik | 2003-05-20 |
| 6456713 | Method and apparatus for detecting data port usage | Mario E. Jauregui, Elaine C. He, Ronald S. Lesniak, Maxim Bakaleynik | 2002-09-24 |
| 6252957 | Low power line selection circuit for a telephone | Mario E. Jauregui, Elaine C. He, Maxim Bakaleynik | 2001-06-26 |
| 5768366 | High voltage message waiting circuit | Mario E. Jauregui, Ronald S. Lesniak, Elaine C. He | 1998-06-16 |
| 4313038 | DTMF Signal receiver | Albert G. Nilssen | 1982-01-26 |
| 4219699 | Telephone supervision system using DTMF signals | Albert G. Nilssen | 1980-08-26 |