Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7996321 | Method and apparatus for access control to language learning system | Eric Cohen | 2011-08-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7996321 | Method and apparatus for access control to language learning system | Eric Cohen | 2011-08-09 |