Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5113939 | Single bore packer with dual flow conversion for gas lift completion | Colby M. Ross, Richard M. Sproul, Ross M. McCurley | 1992-05-19 |
| 5048610 | Single bore packer with dual flow conversion for gas lift completion | Colby M. Ross, Richard M. Sproul, Ross M. McCurley | 1991-09-17 |
| 4852649 | Packer seal means and method | — | 1989-08-01 |
| 4832129 | Multi-position tool and method for running and setting a packer | Richard M. Sproul, Frank Giusti, Jr., John B. Wilkie, Jr. | 1989-05-23 |
| 4479539 | Downhole lock system | Jack W. Tamplen | 1984-10-30 |
| 4189003 | Method of completing wells in which the lower tubing is suspended from a tubing hanger below the wellhead and upper removable tubing extends between the wellhead and tubing hanger | Henry James | 1980-02-19 |
| 4183404 | Plural parallel tubing with safety joints or release from suspended receptacle | Henry James | 1980-01-15 |