Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9840843 | Gypsum products with improved glass fiber mat | Alfred C. Li, Wei Xu, David Song | 2017-12-12 |
| 9518363 | Antimicrobial size emulsion and gypsum panel made therewith | Evan V. Rohlf | 2016-12-13 |
| 8747534 | Antimicrobial size emulsion and gypsum panel made therewith | Evan V. Rohlf | 2014-06-10 |
| 7309516 | Cellulose gypsum based substrate with increased water resistance and strength by surface application of polymeric diphenylmethane diisocyanate | Christopher R. Nelson | 2007-12-18 |
| 6951586 | Spray apparatus | Christopher R. Nelson | 2005-10-04 |
| 6217946 | Method for applying polymeric diphenylmethane diisocyanate to cellulose/gypsum based substrate | Michael L. Bolind, Michael J. Porter | 2001-04-17 |
| 6153040 | Gypsum board paper that reduces roll up during lamination, and board comprising such paper | Evan V. Rohlf, Dick C. Engbrecht | 2000-11-28 |