Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677434 | Iron-complexed formazan dyes for polyamide and protein substrates | Harold S. Freeman, Jolanta Sokolowska-Gajda | 1997-10-14 |
| 5376151 | Environmentally friendly method for producing lightfast black shades on natural and synthetic substrates | Harold S. Freeman, Jolanta Sokolawska-Gajda | 1994-12-27 |