Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8070634 | Synchronous belt sprocket | — | 2011-12-06 |
| 5395438 | Mineral wool-free acoustical tile composition | Mirza A. Baig, Mark H. Englert, Michael A. Kacner, Rajinder Singh | 1995-03-07 |
| 5106600 | Process for producing tabular acicular gypsum crystals | Norman E. Johnstone, Robert Erickson | 1992-04-21 |
| 4801355 | Tabular acicular gypsum and method of filling paper | Norman E. Johnstone, Robert Erickson | 1989-01-31 |
| 4515577 | Low backlash-high-torque power transmission system and toothed belt used therein | Thaddeus F. Cathey, Rodney J. Nelson | 1985-05-07 |
| 4457781 | Method for solidifying waste slime suspensions | Jay W. Palmer | 1984-07-03 |
| 4452770 | Phosphoanhydrite process | Jay W. Palmer | 1984-06-05 |
| 4424196 | Phosphohemihydrate process for purification of gypsum | Jay W. Palmer | 1984-01-03 |
| 4421731 | Process for purifying phosphogypsum | Jay W. Palmer | 1983-12-20 |
| 4402922 | Process for rapid conversion of fluoroanhydrite to gypsum | Jay W. Palmer | 1983-09-06 |
| 4388292 | Process for reducing radioactive contamination in phosphogypsum | Jay W. Palmer | 1983-06-14 |