Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7490081 | Method and system for automatic identification and notification of relevant software defects | Steven F. Best, Janice M. Girouard | 2009-02-10 |
| 6274226 | Mesoporous silicoaluminate pigments for use in inkjet and carbonless paper coatings | Michael G. Londo, Xiaolin Yang | 2001-08-14 |
| 5938833 | Chemical process for fractionating mineral particles based on particle size | Mitchell J. Willis, Sanjay Behl | 1999-08-17 |
| 5922207 | Filter aid for clay processing | Mitchell J. Willis, Sanjay Behl | 1999-07-13 |
| 5688315 | Colored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purification process | Sanjay Behl, Mitchell J. Willis | 1997-11-18 |
| 5584394 | Colored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purification process | Sanjay Behl, Mitchell J. Willis | 1996-12-17 |
| 5535890 | Method for separating mixture of finely divided minerals | Sanjay Behl, Mitchell J. Willis | 1996-07-16 |
| 5391526 | Situ method for producing hydrosulfite bleach and use thereof | Mitchell J. Willis, Ellen S. Forbus, Larry W. Donaldson | 1995-02-21 |
| 5342443 | Method for bleaching kaolin clay | Ellen S. Forbus, George E. Gantt, Mitchell J. Willis | 1994-08-30 |
| 5154766 | Method for controlling shade of hydrous kaolin pigments and products obtained therefrom | — | 1992-10-13 |
| 5145814 | In situ method for producing hydrosulfite beach and use thereof | Mitchell J. Willis, Ellen S. Forbus, Larry W. Donaldson | 1992-09-08 |
| 4501658 | Method of conditioning clay for flotation using in situ ferrous activator | — | 1985-02-26 |
| 4492628 | Method of treating clay to improve its whiteness | Horton H. Morris, Robert Lester Brooks | 1985-01-08 |