Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9027640 | Method for signalling a downhole device in a well | David Forsyth | 2015-05-12 |
| 8544542 | Method for signalling a downhole device in a well | David Forsyth | 2013-10-01 |
| 7703511 | Pressure barrier apparatus | David Forsyth | 2010-04-27 |
| 7673680 | Method for signalling a downhole device in a flowing well | David Forsyth | 2010-03-09 |
| 7614454 | Downhole actuation method and apparatus for operating remote well control device | David Forsyth | 2009-11-10 |
| 7000705 | Hydraulic setting tool with pressure multiplier | David Forsythe, Simon Fraser | 2006-02-21 |
| 6543541 | Access control between a main bore and a lateral bore in a production system | David Forsythe | 2003-04-08 |
| 6345669 | Reciprocating running tool | Simon Fraser | 2002-02-12 |
| 5811894 | Safety module | Simon Fraser | 1998-09-22 |