Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6219635 | Instantaneous detection of human speech pitch pulses | David C. Coulter | 2001-04-17 |
| 4635141 | Method and apparatus for storing data on magnetic or optical media | — | 1987-01-06 |