Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9403662 | Retractable oxygen tube assembly | Neil A. Evans, Charles McIlvain | 2016-08-02 |
| 5749668 | Apparatus for exercising and/or rehabilitating an ankle | Charles McIlvain | 1998-05-12 |