Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7731783 | Continuous pressure letdown system | David R. Matthews, Terry Langowski | 2010-06-08 |
| 7717046 | High pressure dry coal slurry extrusion pump | David R. Matthews | 2010-05-18 |
| 7615198 | Apparatus for continuously feeding and pressurizing a solid material into a high pressure system | David R. Matthews, Albert E. Stewart | 2009-11-10 |
| 7547419 | Two phase injector for fluidized bed reactor | Albert E. Stewart | 2009-06-16 |
| 7547423 | Compact high efficiency gasifier | Shahram Farhangi, David R. Matthews | 2009-06-16 |
| 7402188 | Method and apparatus for coal gasifier | — | 2008-07-22 |
| 7387197 | Linear tractor dry coal extrusion pump | David R. Matthews | 2008-06-17 |
| 7360639 | Hot rotary screw pump | Albert E. Stewart | 2008-04-22 |
| 7303597 | Method and apparatus for continuously feeding and pressurizing a solid material into a high pressure system | David R. Matthews, Albert E. Stewart | 2007-12-04 |
| 7182803 | Solids multi-clone separator | Albert E. Stewart, Jeffrey A. Mays | 2007-02-27 |
| 7140184 | Fuel injection method and apparatus for a combustor | Shahram Farhangi, Alan V. von Arx, David R. Matthews | 2006-11-28 |
| 7127899 | Non-swirl dry low NOx (DLN) combustor | Shahram Farhangi, Mark D. Horn, David R. Matthews | 2006-10-31 |
| 7117674 | Catalytic combustor and method for substantially eliminating various emissions | Shahram Farhangi, Michael Moriarty, David R. Matthews | 2006-10-10 |
| 7117676 | Apparatus for mixing fluids | Shahram Farhangi, David R. Matthews | 2006-10-10 |
| 7111463 | Combustion wave ignition for combustors | Shahram Farhangi | 2006-09-26 |
| 7007486 | Apparatus and method for selecting a flow mixture | Alan V. von Arx, David R. Matthews | 2006-03-07 |
| 6920836 | Regeneratively cooled synthesis gas generator | — | 2005-07-26 |
| 6857274 | Fluid injector and injection method | David R. Matthews, Robert J. Jensen | 2005-02-22 |
| 6802178 | Fluid injection and injection method | David R. Matthews, Robert J. Jensen | 2004-10-12 |
| 6775987 | Low-emission, staged-combustion power generation | James Hartung | 2004-08-17 |
| 6755359 | Fluid mixing injector and method | David R. Matthews, Robert J. Jensen | 2004-06-29 |
| 6565312 | Fluid-cooled turbine blades | Mark D. Horn, James Lobitz, David R. Matthews, Luis A. Rosales, Allan Von Arx | 2003-05-20 |
| 5534363 | Hollow artery anode wick for passive variable pressure regenerative fuel cells | James D. Navratil | 1996-07-09 |
| 5506066 | Ultra-passive variable pressure regenerative fuel cell system | — | 1996-04-09 |
| 5407756 | Anode assembly for a variable pressure passive regenerative fuel cell system | — | 1995-04-18 |