Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825001 | Cyclobutarene ketoaniline monomeric and polymeric compositions | Robert A. Kirchhoff | 1989-04-25 |
| 4795827 | Cyclobutarene ketoaniline monomeric and polymeric compositions | Robert A. Kirchhoff | 1989-01-03 |