Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8795993 | Process for treating biomass to derivatize polysaccharides contained therein to increase their accessibility to hydrolysis and subsequent fermentation | Patrick J. Cowan, John C. Gast | 2014-08-05 |
| 6602994 | Derivatized microfibrillar polysaccharide | Mary Cash, Anita N. Chan, Patrick J. Cowan, Robert A. Gelman, Kate Marritt Lusvardi +2 more | 2003-08-05 |
| 6183550 | Paper size dispersions | Tingdong Lin, Gert Tuin, Henrica G. M. van de Steeg | 2001-02-06 |
| 5176794 | Flame spread barrier made from mechanically delaminated vermiculite sheet | David H. Dumas, Lawrence L. Nelson | 1993-01-05 |
| 5139615 | Composite sheet made from mechanically delaminated vermiculite | David H. Dumas | 1992-08-18 |
| 5137656 | Water resistant mineral products | — | 1992-08-11 |