Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807173 | Frequency-domain block-adaptive digital filter | Petrus C. W. Sommen, Theodoor A. C. M. Claasen, Petrus J. Van Gerwen | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807173 | Frequency-domain block-adaptive digital filter | Petrus C. W. Sommen, Theodoor A. C. M. Claasen, Petrus J. Van Gerwen | 1989-02-21 |