Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312877 | Centraliser | Andrew Kirk, Nathan Kirk | 2025-05-27 |
| 12312878 | Centraliser | Andrew Kirk, Nathan Kirk | 2025-05-27 |
| 11555357 | Centraliser | Andrew Kirk, Nathan Kirk | 2023-01-17 |
| 11459834 | Downhole apparatus and associated methods | Nathan Kirk | 2022-10-04 |
| D957470 | Centralizer for centralizing tubing in a wellbore | Nathan Kirk | 2022-07-12 |
| D940207 | Nose for a shoe suitable for use in an oil and gas wellbore | Andrew Kirk, Nathan Kirk | 2022-01-04 |
| D930046 | Centralizer for centralizing tubing in a wellbore | Nathan Kirk | 2021-09-07 |
| 9470047 | Centraliser | Andrew Kirk | 2016-10-18 |
| 8561729 | Casing bit and casing reamer designs | William W. King, Michael R. Reese, Steven W. Drews | 2013-10-22 |
| D671960 | Centraliser | Andrew Kirk | 2012-12-04 |
| D662952 | Centraliser | Andrew Kirk | 2012-07-03 |
| 7743829 | Cement flow control tool | William Barron, Alistair Bertram Clark | 2010-06-29 |
| 7694733 | Centralizer | Alistair Bertram Clark, William Barron | 2010-04-13 |
| 7096939 | Slotted expandable centraliser | William Barron, Alistair Bertram Clark | 2006-08-29 |
| 6845816 | ADI centralizer | William Barron, Allstair Bertram Clark, Arron Rimmer, Barry N. Newton | 2005-01-25 |
| 6830102 | Centraliser | William Barron, Alistair Bertram Clark | 2004-12-14 |
| 6659173 | Downhole tool | William Barron, Alistair Clark | 2003-12-09 |
| 6435275 | Casing centralizer | William Barron, Alistair Bertram Clark | 2002-08-20 |
| 6401820 | Downhole tool | William Barron, Alistair Clark | 2002-06-11 |
| 5860760 | Gripping device | — | 1999-01-19 |