Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4209528 | Antisecretory oxamic acid esters | John H. Sellstedt, Dieter Klaubert, David A. Shriver | 1980-06-24 |
| 4191840 | Oxamic acid derivatives | John H. Sellstedt, Albert J. Begany | 1980-03-04 |