Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6612372 | Two-stage downhole packer | Roland Richard Freiheit | 2003-09-02 |
| 6513595 | Port collar assembly for use in a wellbore | Roland Richard Freiheit, Brett Gullory | 2003-02-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6612372 | Two-stage downhole packer | Roland Richard Freiheit | 2003-09-02 |
| 6513595 | Port collar assembly for use in a wellbore | Roland Richard Freiheit, Brett Gullory | 2003-02-04 |