Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872955 | Vapor/liquid contact column structure | Byron M. Parker | 1989-10-10 |
| 4869851 | Vapor/liquid contact device and method of mixing a vapor flow and a counter current reflux liquid flow | Byron M. Parker | 1989-09-26 |