Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679290 | Packed absorption towers | Dahya Bhaga | 1997-10-21 |
| 5615738 | Internal bypass valve for a heat exchanger | Charles Guy Cooper, Gregory James Bellamy | 1997-04-01 |
| 5603839 | Process for the recovery of waste sulphuric acid | — | 1997-02-18 |