Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5230708 | Methods and compositions to enhance stain resistance of nylon carpet fibers: thlocyanate to reduce yellowing | Dale A. Hangey, Paul William Richard Harris, Michael P. Friedberger, Charles J. Cole, William A. Archie +1 more | 1993-07-27 |
| 5152803 | Methods and compositions to enhance stain resistance of carpet fibers with water-soluble thiocyanate | Dale A. Hangey, Paul William Richard Harris, Michael P. Friedberger, Charles J. Cole, William A. Archie +1 more | 1992-10-06 |
| 5145487 | Methods and compositions to enhance stain resistance of carpet fibers using sulfonated aromatic condensates | Dale A. Hangey, Paul William Richard Harris, Charles J. Cole | 1992-09-08 |