Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623120 | Safe high pressure instrument valve | Francis Leighton | 1986-11-18 |
| 4519580 | Safe high pressure instrument valve | Francis Leighton | 1985-05-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623120 | Safe high pressure instrument valve | Francis Leighton | 1986-11-18 |
| 4519580 | Safe high pressure instrument valve | Francis Leighton | 1985-05-28 |