Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10356228 | Systems, methods, and apparatus for controlling power semiconductor devices | Todd David Greenleaf, Alan Carroll Lovell | 2019-07-16 |
| 10236113 | System and method for reducing partial discharge in high voltage planar transformers | Alan Carroll Lovell, Andrew David McArthur, Qin Chen, Todd David Greenleaf | 2019-03-19 |
| 9798318 | Online frequency response characterization system and method | Ahmed My Cheta, Seth Hendrickson, Benjamin David Laskowski, Patrick Nkrumah Adasa, Mohamed Ahmed Aljahmi +1 more | 2017-10-24 |
| 9671442 | System and method for detecting a grid event | Robert Gregory Wagoner, Allen Michael Ritter, Talha Irfanul Haque | 2017-06-06 |
| 9620278 | System and method for reducing partial discharge in high voltage planar transformers | Alan Carroll Lovell, Andrew David McArthur, Qin Chen, Todd David Greenleaf | 2017-04-11 |
| 9369035 | Power converter and method of operation | Cyrus David Harbourt | 2016-06-14 |
| 9184650 | Systems, methods, and apparatus for controlling power semiconductor devices | Todd David Greenleaf, Alan Carroll Lovell | 2015-11-10 |
| 9099930 | Power converter and method of assembling the same | Robert Gregory Wagoner, Allen Michael Ritter | 2015-08-04 |
| 8981762 | Apparatus and method for improved current shunt sensing | Robert Gregory Wagoner | 2015-03-17 |
| 8942020 | Three-level phase leg for a power converter | — | 2015-01-27 |
| 8897010 | High performance liquid cooled heatsink for IGBT modules | — | 2014-11-25 |
| 8897014 | Mechanical layout for half-bridge power module that is optimized for low inductance | Robert Gregory Wagoner, Allen Michael Ritter | 2014-11-25 |
| 8423160 | Systems and methods for controlling electronic circuitry with separated controllers | Jordan Brantley Casteel, William Robert Pearson, John Andrew Leonard, Douglas Gregg Fowley, John Robert Booth | 2013-04-16 |
| 8259479 | Methods and systems for operating a two-stage power converter | Robert Gregory Wagoner, David Smith, Allen Michael Ritter | 2012-09-04 |
| 8073991 | Isolated HART interface with programmable data flow | Daniel Milton Alley | 2011-12-06 |
| 7984118 | Persistent configuration in a multiple processor repairable system | Fred Henry Boettner, Stephen J. Sullivan, Craig W. Moyer, Gary Kraterfield, Robert Kirby | 2011-07-19 |
| 7680034 | Redundant control systems and methods | Dennis Brian King, John Cunningham, Fred Henry Boettner | 2010-03-16 |
| 7324360 | Power converter methods and apparatus for variable speed high power machines | Allen Ritter, Richard S. Zhang, Luis Jose Garces, Rajib Datta, Ravisekhar Nadimpalli Raju | 2008-01-29 |
| 6401875 | Absolute position sensing method and apparatus for synchronous elevator machines by detection stator iron saturation | Daryl J. Marvin, Todd Simonds, Alberto Vecchiotti, Vladan Petrovic | 2002-06-11 |
| 5808240 | Low-inductance planar bus arrangement | Christopher S. Czerwinski | 1998-09-15 |
| 5635688 | Start jerk reduction for an elevator | Raj Kantesaria, Donald F. Cominelli | 1997-06-03 |
| 5635689 | Acceleration damping of elevator resonant modes and hydraulic elevator pump leakage compensation | Richard N. Fargo, Harold Terry | 1997-06-03 |
| 4718559 | Process for recovery of non-ferrous metallic concentrate from solid waste | Garry R. Kenny, Edward J. Sommer, Jr. | 1988-01-12 |
| 4541530 | Recovery of metallic concentrate from solid waste | Garry R. Kenny, Edward J. Sommer, Jr. | 1985-09-17 |