Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10995982 | System and method for rare gas recovery | — | 2021-05-04 |
| 10981103 | System and method for enhanced recovery of liquid oxygen from a nitrogen and argon producing cryogenic air separation unit | David R. Parsnick, Neil M. Prosser, John Fredric Billingham | 2021-04-20 |