Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885371 | Process for the preparation of purified N-alkyl lactams | David J. Tracy | 1989-12-05 |
| 4842858 | Polymeric halophors | David J. Tracy, Robert B. Login | 1989-06-27 |
| 4830851 | Polymeric halophors | David J. Tracy, Robert B. Login | 1989-05-16 |
| 4806609 | Pyrrolidonyl acrylate block polymers | David J. Tracy, Fulvio J. Vara | 1989-02-21 |
| 4801400 | Epoxy pyrrolidone based non-ionic surfactants | Robert B. Login, David J. Tracy | 1989-01-31 |