Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5197487 | Measuring probe | Jerome B. Ackerman, Thomas ACKERMAN, Herbert J. Hedberg | 1993-03-30 |
| 4665621 | Measuring probe | Jerome B. Ackerman, Thomas ACKERMAN, Herbert J. Hedberg | 1987-05-19 |
| 4511272 | Writing prosthesis | Jason Brown | 1985-04-16 |
| 4239280 | Folding support construction | — | 1980-12-16 |