Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818513 | Separation of hydrogen fluoride from 1,1-difluoroethene | Fred C. Trager, J. Douglas Mansell | 1989-04-04 |
| 4814528 | Removing water from crude 1,2-dichloroethane compositions containing chloral hydrate | Henry W. Schussler | 1989-03-21 |