Issued Patents 1994
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375658 | Shut-in tools and method | Craig L. Zitterich, Harold Kent Beck, William L. Bohan | 1994-12-27 |
| 5368100 | Coiled tubing actuated sampler | David Lewandowski | 1994-11-29 |
| 5355960 | Pressure change signals for remote control of downhole tools | Donald G. Kyle, Neal G. Skinner | 1994-10-18 |
| 5353875 | Methods of perforating and testing wells using coiled tubing | Gary O. Harkins | 1994-10-11 |
| 5332035 | Shut-in tools | Craig L. Zitterich, Harold Kent Beck, William L. Bohan | 1994-07-26 |
| 5329811 | Downhole fluid property measurement tool | William L. Bohan | 1994-07-19 |
| 5316087 | Pyrotechnic charge powered operating system for downhole tools | Kevin R. Manke, David S. Wesson | 1994-05-31 |
| 5293937 | Acoustic system and method for performing operations in a well | Ricky M. Holloman | 1994-03-15 |
| 5291796 | Apparatus and method for draining high pressure fluid samples without mercury | Paul D. Ringgenberg | 1994-03-08 |
| 5287741 | Methods of perforating and testing wells using coiled tubing | Gary O. Harkins | 1994-02-22 |
| 5279363 | Shut-in tools | Craig L. Zitterich, Harold Kent Beck, William L. Bohan | 1994-01-18 |