Hahn; James Richard
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hahn; James Richard.The latest application filed is for "method for preparation of hydrophobic precipitated silica".
- Hahn; James Richard - Midland MI
| Patent | Date |
|---|---|
| Method for preparation of hydrophobic precipitated silica Grant 6,184,408 - Burns , et al. February 6, 2 | 2001-02-06 |
| Neutral-aged hydrophobic silica gels with reduced surface area Grant 6,107,351 - Burns , et al. August 22, 2 | 2000-08-22 |
| Method for making hydrophobic non-aggregated colloidal silica Grant 6,051,672 - Burns , et al. April 18, 2 | 2000-04-18 |
| Process for making hydrophobic silica with reduced surface area under neutral conditions Grant 5,942,590 - Burns , et al. August 24, 1 | 1999-08-24 |
| Method for making hydrophobic organosilicate-modified silica gels under neutral conditions Grant 5,789,495 - Burns , et al. August 4, 1 | 1998-08-04 |
| Hydrophobic organosilicate-modified silica gels Grant 5,750,610 - Burns , et al. May 12, 1 | 1998-05-12 |
| Method for making hydrophobic silica gels under neutral conditions Grant 5,708,069 - Burns , et al. January 13, 1 | 1998-01-13 |
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