Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886697 | Thermoplastic material containing absorbent pad or other article | Lee E. Perdelwitz, Jr, Robert H. Young, Ron H. Iff, David E. Hanke, Kathleen S. Allison +1 more | 1989-12-12 |
| 4863565 | Sheeted products formed from reticulated microbial cellulose | Donald C. Johnson | 1989-09-05 |
| 4861427 | Bacterial cellulose as surface treatment for fibrous web | Donald C. Johnson, Henry A. LeBlanc | 1989-08-29 |