Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619388 | Fail safe surface controlled subsurface safety valve for use in a well | Wesley P. Dietz, Robert Arthur Rademaker, Ronald W. McGregor | 2003-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619388 | Fail safe surface controlled subsurface safety valve for use in a well | Wesley P. Dietz, Robert Arthur Rademaker, Ronald W. McGregor | 2003-09-16 |