Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9683166 | Hydrocarbon well treatment methods and fluids | C. David Armstrong | 2017-06-20 |
| 9587159 | Enzymes for removing sulfurous compounds in downhole fluids | Charles David Armstrong | 2017-03-07 |