| 10356228 |
Systems, methods, and apparatus for controlling power semiconductor devices |
Todd David Greenleaf, Alan Carroll Lovell |
2019-07-16 |
$19,185,000 |
| 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 |
$28,039,000 |
| 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 |
$22,084,000 |
| 9671442 |
System and method for detecting a grid event |
Robert Gregory Wagoner, Allen Michael Ritter, Talha Irfanul Haque |
2017-06-06 |
$19,371,000 |
| 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 |
$16,578,000 |
| 9369035 |
Power converter and method of operation |
Cyrus David Harbourt |
2016-06-14 |
$23,864,000 |
| 9184650 |
Systems, methods, and apparatus for controlling power semiconductor devices |
Todd David Greenleaf, Alan Carroll Lovell |
2015-11-10 |
$34,133,000 |
| 9099930 |
Power converter and method of assembling the same |
Robert Gregory Wagoner, Allen Michael Ritter |
2015-08-04 |
$27,213,000 |
| 8981762 |
Apparatus and method for improved current shunt sensing |
Robert Gregory Wagoner |
2015-03-17 |
$15,461,000 |
| 8942020 |
Three-level phase leg for a power converter |
— |
2015-01-27 |
$15,059,000 |
| 8897010 |
High performance liquid cooled heatsink for IGBT modules |
— |
2014-11-25 |
$18,272,000 |
| 8897014 |
Mechanical layout for half-bridge power module that is optimized for low inductance |
Robert Gregory Wagoner, Allen Michael Ritter |
2014-11-25 |
$18,272,000 |
| 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 |
$13,172,000 |
| 8259479 |
Methods and systems for operating a two-stage power converter |
Robert Gregory Wagoner, David Smith, Allen Michael Ritter |
2012-09-04 |
$21,680,000 |
| 8073991 |
Isolated HART interface with programmable data flow |
Daniel Milton Alley |
2011-12-06 |
$21,081,000 |
| 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 |
$32,943,000 |
| 7680034 |
Redundant control systems and methods |
Dennis Brian King, John Cunningham, Fred Henry Boettner |
2010-03-16 |
$50,360,000 |
| 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 |
$51,849,000 |
| 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 |
$47,427,000 |
| 5808240 |
Low-inductance planar bus arrangement |
Christopher S. Czerwinski |
1998-09-15 |
$6,891,000 |
| 5635688 |
Start jerk reduction for an elevator |
Raj Kantesaria, Donald F. Cominelli |
1997-06-03 |
$23,387,000 |
| 5635689 |
Acceleration damping of elevator resonant modes and hydraulic elevator pump leakage compensation |
Richard N. Fargo, Harold Terry |
1997-06-03 |
$23,387,000 |
| 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 |
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