Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8568544 | Water resistant cementitious article and method for preparing same | Dick C. Engbrecht, Qingxia Liu, Michael P. Shake, Xuming Wang, David Paul Miller +3 more | 2013-10-29 |
| 8070895 | Water resistant cementitious article and method for preparing same | Dick C. Engbrecht, Qingxia Liu, Michael P. Shake, Xuming Wang, David Paul Miller +3 more | 2011-12-06 |
| 7765813 | Apparatus and process for cooling and de-steaming calcined stucco | Christopher R. Nelson, Bruce L. Petersen, Michael J. Porter | 2010-08-03 |
| 7556791 | Gypsum anhydrite fillers and process for making same | Michael J. Porter, Christopher Robert Nelsen | 2009-07-07 |
| 7434980 | Swinging agitator for a gypsum calcining apparatus and the like | Michael J. Porter | 2008-10-14 |
| 7175426 | High efficiency refractoryless kettle | Warner J. Dundas, Michael J. Porter, Christopher R. Nelson, Subhash Deodhar | 2007-02-13 |
| 7121713 | Swinging agitator for a gypsum calcining apparatus and the like | Michael J. Porter | 2006-10-17 |
| 6217946 | Method for applying polymeric diphenylmethane diisocyanate to cellulose/gypsum based substrate | Michael J. Porter, Mark B. Scalf | 2001-04-17 |
| 6138377 | Apparatus and process for cooling and de-steaming calcined stucco | Michael J. Porter | 2000-10-31 |
| 4283423 | Free-flowing granular urea nutrient supplements | Kenneth R. Watkins | 1981-08-11 |