Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5113438 | Method and apparatus for jamming infrared remote controls | Johan F. Blokker, Jr. | 1992-05-12 |
| 4811407 | Method and apparatus for converting analog video character signals into computer recognizable binary data | Johan F. Blokker, Jr. | 1989-03-07 |