MS

Mark Eugene Shepard

GE: 18 patents #1,600 of 36,430Top 5%
OE Otis Elevator: 4 patents #397 of 1,840Top 25%
MS Magnetic Separation Systems: 2 patents #4 of 10Top 40%
Overall (All Time): #173,373 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
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