Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10718458 | Automated pressure equalization above and below completion plug of gate valve cartridge or a completion plug of a line stop fitting | Andrew J. Nelson, Christopher C. Vazzana, Cole Strickland | 2020-07-21 |
| 10619747 | Expanding gate valve assembly with pressure equalization system | Christopher C. Vazzana, Andrew J. Nelson | 2020-04-14 |