Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11021929 | Positive cement placement tool | Trevor James MONTGOMERY | 2021-06-01 |
| 10550648 | Apparatus for reciprocation and rotation of a conveyance string in a wellbore | — | 2020-02-04 |
| 10221657 | Drillable and resettable wellbore obstruction-clearing tool | — | 2019-03-05 |
| 9951583 | Reciprocating wellbore obstruction-clearing tool and bailer | Trevor James MONTGOMERY, Duwayne Springer | 2018-04-24 |
| 5503872 | Flameless plastic coating apparatus and method therefor | Kenneth R. MacKenzie | 1996-04-02 |