Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859509 | Textile warp size | Peter T. Trzasko | 1989-08-22 |
| 4839449 | Polysaccharides containing aromatic aldehydes and their derivatization via amine-aldehyde interactions | Robert L. Billmers, David M. Del Giudice, Martin M. Tessler | 1989-06-13 |