Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10625345 | Method and apparatus for repair drill pipe and other tubular goods, including threaded connections thereof | Dale J. Castille | 2020-04-21 |
| 5015118 | Mounting means | Michael J. B. Sewell, Christopher K. B. Sewell, Margaret I. Sewell | 1991-05-14 |
| 4858351 | Wall securement system | Michael J. B. Sewell, Margaret I. Sewell | 1989-08-22 |
| 4739836 | Arrangement for use in surface treatment | Michael J. B. Sewell, Stephen C. B. Sewell, Christopher K. B. Sewell, Margaret I. Sewell | 1988-04-26 |