Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853651 | Delay circuit with all-pass network | Pieter Jacob Snijder, Johannes S. Vromans | 1989-08-01 |
| 4798982 | Active symmetrical balance hybrid circuit | — | 1989-01-17 |
JV
Johannes O. Voorman
Overall (1989): #23,344 of 140,708Top 20%
2
Patents 1989