Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826880 | Immobilizing particulate absorbents by conversion to hydrates | John M. Lesniak, Wayne G. Koci, James E. McCann | 1989-05-02 |
| 4808637 | Superabsorbent composition and process | John M. Lesniak | 1989-02-28 |