Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5522264 | Method and apparatus for detecting and measuring gelled pigs in tubulars | Keith W. Katahara | 1996-06-04 |
| 5090039 | Inspecting coiled tubing for well operations | Michael F. Gard, Eric S. Pasternack | 1992-02-18 |
| 5018574 | Tubing conveyed wellbore fluid flow measurement apparatus | — | 1991-05-28 |
| 4928759 | Tubing conveyed wellbore fluid flow measurement system | Robert W. Siegfried, II, H. Mitchell Cornette | 1990-05-29 |
| 4909741 | Wellbore tool swivel connector | Thomas Schasteen | 1990-03-20 |
| 4883120 | Latching tool for retrieving wellbore devices | Thomas Schasteen | 1989-11-28 |
| 4793435 | Apparatus for generating multiple seismic signals in a wellbore | Charles C. Mosher | 1988-12-27 |
| 4787446 | Inflatable packer and fluid flow control apparatus for wellbore operations | Eddie P. Howell, Dennis R. Wood | 1988-11-29 |
| 4759406 | Wireline tool connector with wellbore fluid shutoff valve | Dennis R. Wood | 1988-07-26 |
| 4753291 | Modular wireline tool connector with swivel coupling | Dennis R. Wood | 1988-06-28 |
| 4706744 | Wireline tool connector | Steven G. Petermann, Dennis R. Wood | 1987-11-17 |
| 4685516 | Apparatus for operating wireline tools in wellbores | Curtis G. Blount, Steven G. Petermann | 1987-08-11 |