Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4983194 | Production of high purity argon | Jeffrey A. Hopkins, Rakesh Agrawal, Steven L. Feldman | 1991-01-08 |
| 4894076 | Recycle liquefier process | Thaddeus N. Dobracki, John D. Dubbs, Janice C. Peterson | 1990-01-16 |
| 4869741 | Ultra pure liquid oxygen cycle | Nellie Cilen | 1989-09-26 |