Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE45244 | Expandable tubing and method | Craig D. Johnson, Matthew R. Hackworth, Patrick W. Bixenman, Peter Besselink | 2014-11-18 |
| 8230913 | Expandable device for use in a well bore | Barrie Hart, Craig D. Johnson, Peter Besselink | 2012-07-31 |
| 7398831 | Expandable tubing and method | Craig D. Johnson, Matthew R. Hackworth, Patrick W. Bixenman | 2008-07-15 |
| 7156180 | Expandable tubing and method | Craig D. Johnson, Matthew R. Hackworth, Patrick W. Bixenman | 2007-01-02 |
| 6799637 | Expandable tubing and method | Craig D. Johnson, Matthew R. Hackworth, Patrick W. Bixenman | 2004-10-05 |
| 6772836 | Expandable tubing and method | Craig D. Johnson, Matthew R. Hackworth, Patrick W. Bixenman | 2004-08-10 |
| 6053992 | Shape memory alloy sealing components | Ming-Hsiung Wu | 2000-04-25 |