Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11226057 | Multiple tubing annuli pipeline systems and methods | Juan Alfredo Erni, Kirk Spencer Francis | 2022-01-18 |
| 10982797 | Multiple tubing annuli pipeline systems and methods | Juan Alfredo Erni, Kirk Spencer Francis | 2021-04-20 |