Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5987302 | On-line essay evaluation system | Gary Driscoll, Lou A. Hatfield, Arlene Johnson, Helen D. Kahn, Theodore E. Kessler +3 more | 1999-11-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5987302 | On-line essay evaluation system | Gary Driscoll, Lou A. Hatfield, Arlene Johnson, Helen D. Kahn, Theodore E. Kessler +3 more | 1999-11-16 |