Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6253631 | Pumping unit lock down apparatus | James R. McCain, Donald J. Lewis | 2001-07-03 |
| 5445222 | Whipstock and staged sidetrack mill | Michael D. Pritchard, James R. McCain, Mark D. Bright | 1995-08-29 |