Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8236084 | Ceramic radial wall flow particulate filter | Michael Fischer, Michael Thomas Gallagher, Keith Leonard House, Thomas Dale Ketcham, Christopher John Malarkey | 2012-08-07 |
| 8137469 | Method and apparatus for making fused silica | Daniel Warren Hawtof, Michael T Kelley, Andrew Paul Schermerhorn, Kashyap Shah, John Stone, III +1 more | 2012-03-20 |
| 8037717 | Methods and apparatus for pulsed doping or drying a soot preform | Steven Bruce Dawes, Daniel Warren Hawtof, Michael Murtagh, Andrew Paul Schermerhorn, Merrill F. Sproul +2 more | 2011-10-18 |
| 6743011 | Multi-layer burner module, adapter, and assembly therefor | Shivalik Bakshi, Daniel Warren Hawtof, Amy Rovelstad, John Stone, III | 2004-06-01 |