Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847418 | Continuous process for preparing alkanolamines | Charles A. Gibson, James R. Nelson | 1989-07-11 |
| 4845296 | Process for preparing alkanolamines | James R. Nelson, Charles A. Gibson | 1989-07-04 |