Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6241780 | Method for strengthening cellulosic substrates, cellulosic nonwoven wipes, and paper filter stock | Charles Thomas Arkens, Scott Lind Egolf, Oscar Hsien-Hsiang Hsu, Kenneth John Wiesinger | 2001-06-05 |
| 6221973 | Curable aqueous composition and use as fiberglass nonwoven binder | Charles Thomas Arkens | 2001-04-24 |
| 6136916 | Curable aqueous composition | Charles Thomas Arkens | 2000-10-24 |
| 5763524 | Curable aqueous composition and use as fiberglass non woven binder | Charles Thomas Arkens | 1998-06-09 |
| 5718728 | Method for strengthening cellulosic substrates, celluosic non woven wipes, and paper filter stock | Charles Thomas Arkens, Scott Lind Egolf, Oscar Hsien-Hsiang Hsu, Kenneth John Wiesinger | 1998-02-17 |
| 5661213 | Curable aqueous composition and use as fiberglass nonwoven binder | Charles Thomas Arkens | 1997-08-26 |
| 5427587 | Method for strengthening cellulosic substrates | Charles Thomas Arkens, Scott Lind Egolf, Oscar Hsien-Hsiang Hsu, Kenneth John Wiesinger | 1995-06-27 |
| 4524121 | Positive photoresists containing preformed polyglutarimide polymer | Mark P. de Grandpre | 1985-06-18 |
| 4446310 | Polyacetylene with pyrogallol or hydrosulfite system | — | 1984-05-01 |
| 4371393 | Zero valent metal recovery with polyacetylene | Richard T. Gray | 1983-02-01 |
| 4356301 | Polyacetylene with anthraquinone system | — | 1982-10-26 |