Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11371163 | Stabilized, high-doped silicon carbide | Adrian Powell, Al Burk | 2022-06-28 |
| 10577720 | Stabilized, high-doped silicon carbide | Adrian Powell, Al Burk | 2020-03-03 |
| 10541306 | Using a carbon vacancy reduction material to increase average carrier lifetime in a silicon carbide semiconductor device | Lin Cheng, Albert Augustus Burk, Jr., Anant Agarwal, Alexander V. Suvorov | 2020-01-21 |
| 9903046 | Reduction of carrot defects in silicon carbide epitaxy | Joseph Sumakeris | 2018-02-27 |
| 9349797 | SiC devices with high blocking voltage terminated by a negative bevel | Lin Cheng, Anant Agarwal, Albert Augustus Burk, Jr., John Williams Palmour | 2016-05-24 |
| 9112083 | Group III nitride based light emitting diode structures with a quantum well and superlattice, group III nitride based quantum well structures and group III nitride based superlattice structures | David T. Emerson, James Ibbetson, Michael John Bergmann, Kathleen Marie Doverspike, Howard Nordby +1 more | 2015-08-18 |
| 8536582 | Stable power devices on low-angle off-cut silicon carbide crystals | Qingchun Zhang, Anant Agarwal, Doyle Craig Capell, Albert Augustus Burk, Jr., Joseph Sumakeris | 2013-09-17 |
| 8430960 | Deposition systems and susceptor assemblies for depositing a film on a substrate | Joseph Sumakeris, Michael James Paisley | 2013-04-30 |
| 8227268 | Methods of fabricating group III nitride based light emitting diode structures with a quantum well and superlattice, group III nitride based quantum well structures and group III nitride based superlattice structures | David T. Emerson, James Ibbetson, Michael John Bergmann, Kathleen Marie Doverspike, Howard Nordby +1 more | 2012-07-24 |
| 8052794 | Directed reagents to improve material uniformity | Joseph Sumakeris, Michael James Paisley | 2011-11-08 |
| 7999524 | Interleaved power factor correction pre-regulator phase management circuitry | — | 2011-08-16 |
| 7312474 | Group III nitride based superlattice structures | David T. Emerson, James Ibbetson, Michael John Bergmann, Kathleen Marie Doverspike, Howard Nordby +1 more | 2007-12-25 |
| 7230274 | Reduction of carrot defects in silicon carbide epitaxy | Joseph Sumakeris | 2007-06-12 |
| 7196917 | PFC pre-regulator frequency dithering circuit | — | 2007-03-27 |
| 7118781 | Methods for controlling formation of deposits in a deposition system and deposition methods including the same | Joseph Sumakeris, Michael James Paisley | 2006-10-10 |
| 6958497 | Group III nitride based light emitting diode structures with a quantum well and superlattice, group III nitride based quantum well structures and group III nitride based superlattice structures | David T. Emerson, James Ibbetson, Michael John Bergmann, Kathleen Marie Doverspike, Howard Nordby +1 more | 2005-10-25 |
| 5028968 | Radiation hard GaAs high electron mobility transistor | Richard J. Krantz, Walter L. Bloss | 1991-07-02 |