Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9759482 | Argon production method and apparatus | Henry Edward Howard, Persefoni Kechagia, Philip A. Barrett | 2017-09-12 |
| 9644890 | Argon production method and apparatus | Henry Edward Howard, Persefoni Kechagia, Philip A. Barrett | 2017-05-09 |