Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662870 | Method and system for accessing subterranean deposits from a limited surface area | Joseph A. Zupanick | 2003-12-16 |
| 6644422 | Pantograph underreamer | Lawrence W. Diamond, Harold E. Payne | 2003-11-11 |
| 6604580 | Method and system for accessing subterranean zones from a limited surface area | Joseph A. Zupanick | 2003-08-12 |
| 6591922 | Pantograph underreamer and method for forming a well bore cavity | Lawrence W. Diamond, Harold E. Payne | 2003-07-15 |
| 6575235 | Subterranean drainage pattern | Joseph A. Zupanick | 2003-06-10 |
| 6575255 | Pantograph underreamer | Lawrence W. Diamond, Harold E. Payne | 2003-06-10 |