Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6394088 | Oxygen-delivery system with portable oxygen meter | Mark R. Frye, J. Fred Brown | 2002-05-28 |
| 6116242 | Oxygen-conserving regulator assembly | Mark R. Frye, John R. Grenaway, Richard A. Davis | 2000-09-12 |
| 4411138 | Neck tube closure assembly for cryogenic containers | John K. Young | 1983-10-25 |