Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875901 | Treating fibrous polyamide articles | George L. Payet | 1989-10-24 |
| 4846502 | Tamper evident document and use thereof | Theodore Dimitriou | 1989-07-11 |
| 4822373 | Process for providing polyamide materials with stain resistance with sulfonated novolak resin and polymethacrylic acd | Maynard H. Olson, Imelda A. Muggli | 1989-04-18 |