Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648068 | One-trip milling system | Charles H. Dewey, James E. Saylor, III, Bruce D. Swearingen, Andrew MacDonald Robin, Alexander William Dawson | 2003-11-18 |
| 5894889 | One trip milling system | Charles H. Dewey, James E. Saylor, III, Bruce D. Swearingen, Andrew MacDonald Robin, Alexander William Dawson | 1999-04-20 |
| 5816324 | Whipstock accelerator ramp | Bruce D. Swearingen | 1998-10-06 |
| 5771972 | One trip milling system | Charles H. Dewey, James E. Saylor, III, Bruce D. Swearingen, Andrew MacDonald Robin, Alexander William Dawson | 1998-06-30 |