Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857663 | Hypoglycemic N-(2-substituted-3-dialkylamino-2-propenylidene)-N-alkylalkanaminium salts | Eugene R. Wagner, Donald P. Matthews | 1989-08-15 |
| 4847288 | Allenyl amines | James R. McCarthy, Thomas M. Bargar, Donald P. Matthews, Robert J. Broersma, Jr. | 1989-07-11 |