Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474419 | Packer with equalizing valve and method of use | Gary Maier, Eric Schmelzl | 2002-11-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474419 | Packer with equalizing valve and method of use | Gary Maier, Eric Schmelzl | 2002-11-05 |