| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Australia | 2 | |
| #3 | China | 2 | |
| #4 | Mexico | 2 | |
| #5 | Canada | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Hong Kong | 1 | |
| #8 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kuchman Todd J | 14 |
| #2 | Todd J Kuchman | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6842409B2 | Optical disc and method of protecting same | |
| CN1722264A | Optical disc | |
| AU2002245466B2 | Optical disc and method of protecting same |