Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10851609 | Installation of an emergency casing slip hanger and annular packoff assembly having a metal to metal sealing system through the blowout preventer | Frederic Kauffmann | 2020-12-01 |
| 10196872 | Installation of an emergency casing slip hanger and annular packoff assembly having a metal to metal sealing system through the blowout preventer | Frederic Kauffmann | 2019-02-05 |