Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7270546 | System and method for interactive reading and language instruction | Subrata Das, Peter G. Fairweather, Don Holmes Nix | 2007-09-18 |
| 6017219 | System and method for interactive reading and language instruction | Subrata Das, Peter G. Fairweather, Don Holmes Nix | 2000-01-25 |