Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8357621 | Soil resist method | Joyce Monson Materniak | 2013-01-22 |
| 7901589 | Propanediol soil resist compositions | Joyce Monson Materniak | 2011-03-08 |
| 7754092 | Soil resist additive | Joyce Monson Materniak | 2010-07-13 |
| 7550065 | Method for recovering solvents | Majid Keyvani, Jude T. Ruszkay | 2009-06-23 |
| 7238260 | Purification of N-(2-hydroxyethyl)-2-pyrrolidone | Andrew P. Kahn, David W. Leyshon, Shaw-Chan Lin | 2007-07-03 |
| 7138528 | Method for crystallizing N-vinyl-2-pyrrolidone | Vijai P. Gupta | 2006-11-21 |
| 7060787 | Extraction of impurities from grafted polyolefins | Vijai P. Gupta | 2006-06-13 |
| 7045639 | Method for purifying N-(2-hydroxyethyl)-2-pyrrolidone | Andrew P. Kahn | 2006-05-16 |