Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5726566 | Apparatus for measuring an RF parameter | Leendert Quist | 1998-03-10 |
| 4926173 | Data entry keyboard apparatus | — | 1990-05-15 |
FF
Franciscus J. Frielink
AT&T: 1 patents #10,626 of 18,772Top 60%
Overall (All Time): #2,258,267 of 4,157,543Top 55%
2
Patents All Time