Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817164 | Electrostatic discharge protector for an electret microphone | Friedrich Bertignoll | 1989-03-28 |
MP
Mark Pocock
Bell Northern Research: 1 patents #1 of 3Top 35%
Overall (1989): #79,309 of 140,708Top 60%
1
Patents 1989