Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5532920 | Data processing system and method to enforce payment of royalties when copying softcopy books | Thomas V. Hartrick, Jeffrey N. Stevens | 1996-07-02 |
| 5428529 | Structured document tags invoking specialized functions | Thomas V. Hartrick, Patricia E. Higgins | 1995-06-27 |