Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484808 | Stripper/packer | Donald L. Jones, David J. McWhorter | 2002-11-26 |
| 6334487 | Valve assembly | Courtney W. Adkins, Thurman B. Caarter, John D. Roberts, William A. Blizzard, Jr. | 2002-01-01 |