Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5178767 | Axially-driven valve controlled trapping assembly | Mark Nickerson, John S. Poole | 1993-01-12 |
| 5151178 | Axially-driven valve controlled trapping assembly | Mark Nickerson, John S. Poole | 1992-09-29 |
| 5009778 | Axially-driven valve controlled fluid trapping assembly | Mark Nickerson, John S. Poole | 1991-04-23 |