Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9712227 | Radio frequency repeater system for signal transmission through radio frequency shielding material | John Tatum Dyal | 2017-07-18 |
| 9479244 | Radio frequency repeater system for signal transmission through radio frequency shielding material in connected home applications | John Tatum Dyal | 2016-10-25 |
| 7359687 | System and method for obtaining comprehensive vehicle radio listener statistics | Carl Ceresoli, Bruce E. Layman, Alexander Birger, Mikhail Kvetny | 2008-04-15 |
| 6934508 | System and method for obtaining comprehensive vehicle radio listener statistics | Carl Ceresoli, Bruce E. Layman, Alexander Birger, Mikhail Kvetny | 2005-08-23 |
| 6310645 | Method and apparatus for measuring characteristics of a communication signal modulated with a composite video signal without synchronizing to the signal | Semyon Lapushin, Alexander Birger | 2001-10-30 |