Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485061 | Threaded tool joint for connecting large diameter tubulars | David L. Sipos | 2002-11-26 |
| 6386283 | Elevator and spider converter | David L. Sipos | 2002-05-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485061 | Threaded tool joint for connecting large diameter tubulars | David L. Sipos | 2002-11-26 |
| 6386283 | Elevator and spider converter | David L. Sipos | 2002-05-14 |