Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9261091 | Coaxial pumping apparatus with internal power fluid column | Richard Frederick McNichol | 2016-02-16 |
| 9115710 | Coaxial pumping apparatus with internal power fluid column | Richard Frederick McNichol, Alexandre Eroujenets, Lucas van den Berg, Gordon Bryce | 2015-08-25 |
| 8454325 | Coaxial pumping apparatus with internal power fluid column | Richard Frederick McNichol | 2013-06-04 |