Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10360940 | Method of protection of optical media, such as CDs and DVDs against unauthorised copying and a non-standard optical audio disc and video disc with protection against loading and playing in personal computers and matrices for making thereof | Ivan {hacek over (S)}afárik, Milan Zachar | 2019-07-23 |