Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648068 | One-trip milling system | Charles H. Dewey, James E. Saylor, III, Andrew MacDonald Robin, Alexander William Dawson, Gregory S. Nairn | 2003-11-18 |
| 6102123 | One trip milling system | Thomas F. Bailey | 2000-08-15 |
| 5894889 | One trip milling system | Charles H. Dewey, James E. Saylor, III, Andrew MacDonald Robin, Alexander William Dawson, Gregory S. Nairn | 1999-04-20 |
| 5816324 | Whipstock accelerator ramp | Gregory S. Nairn | 1998-10-06 |
| 5771972 | One trip milling system | Charles H. Dewey, James E. Saylor, III, Andrew MacDonald Robin, Alexander William Dawson, Gregory S. Nairn | 1998-06-30 |
| 5392862 | Flow control sub for hydraulic expanding downhole tools | — | 1995-02-28 |