Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4570746 | Wind/breath screen for a microphone | Subrata Das, Norman R. Dixon | 1986-02-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4570746 | Wind/breath screen for a microphone | Subrata Das, Norman R. Dixon | 1986-02-18 |