Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D362240 | Computer interface device | Richard H. Heidorn, Stephen W. Smith, Kenneth Hanzl | 1995-09-12 |
| D358395 | Modem | Richard H. Heidorn, Stephen W. Smith, Kenneth Hanzl | 1995-05-16 |