Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6743509 | Method of treating precipitated calcium carbonate fillers | Debora F. Bergstrom, Gary T. Burns, Sarah Bridget Granzo, Csilla Kollar | 2004-06-01 |
| 6384125 | Chemically modified silica fillers, process for producing, and silicone compositions containing same | Debora F. Bergstrom, Lisa Marie Boswell, Mark Fisher, James Richard Hahn, Timothy A. Okel | 2002-05-07 |
| 6184408 | Method for preparation of hydrophobic precipitated silica | Gary T. Burns, Qin Deng, James Richard Hahn, Thomas G. Krivak, Timothy A. Okel | 2001-02-06 |
| 6107351 | Neutral-aged hydrophobic silica gels with reduced surface area | Gary T. Burns, Qin Deng, James Richard Hahn | 2000-08-22 |
| 5942590 | Process for making hydrophobic silica with reduced surface area under neutral conditions | Gary T. Burns, Qin Deng, James Richard Hahn | 1999-08-24 |
| 5807501 | Neutral-aged hydrophobic organosilicate-modified silica gels | Gary T. Burns, Qin Deng, James Richard Hahn | 1998-09-15 |
| 5789495 | Method for making hydrophobic organosilicate-modified silica gels under neutral conditions | Gary T. Burns, Qin Deng, James Richard Hahn | 1998-08-04 |
| 5789514 | Method for preparing hydrophobic silica gels | Gary T. Burns, James Richard Hahn | 1998-08-04 |
| 5750610 | Hydrophobic organosilicate-modified silica gels | Gary T. Burns, James Richard Hahn | 1998-05-12 |
| 5708069 | Method for making hydrophobic silica gels under neutral conditions | Gary T. Burns, Qin Deng, James Richard Hahn | 1998-01-13 |
| 5160470 | Method for compacting silica fume | Steven W. Graville | 1992-11-03 |