Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4574007 | Fractionating apparatus | Robert R. Provin, John S. Browne | 1986-03-04 |
| 4308043 | Production of oxygen by air separation | — | 1981-12-29 |
| 4289515 | Production of nitrogen by air separation | — | 1981-09-15 |