Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6684053 | On-line educational system for processing exam questions and answers | Jon M. Dobrin | 2004-01-27 |
| 6678500 | On-line educational system for grading of assignments and posting grade information in an on-line gradebook | Jon M. Dobrin | 2004-01-13 |
| 6674992 | On-line educational system for document sharing | Jon M. Dobrin | 2004-01-06 |