Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7803343 | Silica gel manufacturing method and gels made thereby | Duen-Wu Hua, Michael C. Withiam, Francis R. W. Godwin | 2010-09-28 |
| 7585359 | Air filtration media comprising metal-doped silicon-based gel and/or zeolite materials treated with nitric acid and/or potassium persulfate | Michael C. Withiam, David K. Friday, Terry W. Nassivera | 2009-09-08 |
| 7559981 | Air filtration media comprising oxidizing agent-treated metal-doped silicon-based gel and zeolite materials | David K. Friday, Michael C. Withiam | 2009-07-14 |
| 7553416 | Caustic silica gel manufacturing method and gels made thereby | Duen-Wu Hua, Michael C. Withiam, Francis R. W. Godwin | 2009-06-30 |
| 7377965 | Air filtration media comprising metal-doped silicon-based gel materials | Michael C. Withiam, David K. Friday | 2008-05-27 |
| 6946119 | Precipitated silica product with low surface area, dentifrices containing same, and processes | Karl W. Gallis, Mark Wozniak, Jason T. Zapf, John A. Kostinko, Michael Simone | 2005-09-20 |
| 6866711 | Composite pigment composition containing silica | Mark Wozniak, Louis F. Gatti, William C. Fultz | 2005-03-15 |
| 6838495 | Rubber composition comprising composite pigment | Louis F. Gatti, Mark Wozniak, William C. Fultz | 2005-01-04 |