Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6065542 | Adjustable hanger for tubular strings | Richard C. Lalor, Russell McBeth, Amrik S. Nijjar | 2000-05-23 |
| 5878816 | Adjustable casing hanger | Richard C. Lalor, Russell McBeth, Amrik S. Nijjar | 1999-03-09 |
| 5176218 | Adjustable mandrel well casing hanger | Roy E. Singer, Richard C. Lalor, Marcus Smedley, John H. Miller | 1993-01-05 |