Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
AK

Ajith Kuttannair Kumar

GE: 321 patents #1 of 36,430Top 1%
THTransportation Ip Holdings: 46 patents #1 of 657Top 1%
VSVirident Systems: 12 patents #7 of 20Top 35%
Microsoft: 5 patents #8,808 of 40,388Top 25%
WBWestinghouse Air Brake: 2 patents #88 of 284Top 35%
WTWestern Digital Technologies: 1 patents #1,787 of 3,180Top 60%
STSymbol Technologies: 1 patents #645 of 1,181Top 55%
EMEmc: 1 patents #1,879 of 3,345Top 60%
Erie, PA: #1 of 1,097 inventorsTop 1%
Pennsylvania: #4 of 74,527 inventorsTop 1%
Overall (All Time): #677 of 4,157,543Top 1%
391 Patents All Time

Issued Patents All Time

Showing 276–300 of 391 patents

Patent #TitleCo-InventorsDate
7701077 Secondary power for critical loads for railroad Herbert J. Brown, Jeffrey Louis Daigle 2010-04-20
7679298 Locomotive wheel speed control 2010-03-16
7669534 Hybrid energy off highway vehicle propulsion circuit Henry Todd Young 2010-03-02
7629759 Kit and method for reconfiguring an electrical braking system for a traction vehicle Henry Todd Young, Alvaro Jorge Mari Curbelo 2009-12-08
7618011 Consist manager for managing two or more locomotives of a consist Todd S. Oleski, Glenn Robert Shaffer, Charles Earl Cooper, Christopher L. Sheridan, James A. Natalo 2009-11-17
7614469 Battery case and method for securing same Michael Marley 2009-11-10
7594682 Apparatus and method for controlled application of railway friction modifying agent Vishwesh Palekar, Anthony Giammarise, Chi-Houng Lu, John Polley 2009-09-29
7571683 Electrical energy capture system with circuitry for blocking flow of undesirable electrical currents therein 2009-08-11
7562945 System and method for dealing with ground fault conditions that can arise in an electrical propulsion system Mark Alan Linebach, Bret Dwayne Worden, Jeremy Thomas McGarry, Scott Joseph Zarella 2009-07-21
7557528 System, method, and computer software code for detection and interchangeability of a motor Kevin Michael Jones 2009-07-07
7535116 System and method for controlling an output of an auxiliary power source of a diesel powered system Jeffrey Louis Daigle, Bret Dwayne Worden 2009-05-19
7532960 Hybrid energy off highway vehicle electric power management system and method 2009-05-12
7500436 System and method for managing emissions from mobile vehicles Steven Matthew Pelkowski, Mark Bradshaw Kraeling, Glen Paul Peltonen, James Kiss, Daniel Ballesty +7 more 2009-03-10
7501830 Method, apparatus and computer-readable code for detecting an incipient ground fault in an electrical propulsion system 2009-03-10
7498820 Method, apparatus and computer-readable code for detecting an incipient ground fault in an electrical propulsion system 2009-03-03
7498819 Method, apparatus and computer-readable code for detecting an incipient ground fault in an electrical propulsion system 2009-03-03
7472742 Heat sink assembly Theodore Clark Brown, Roland Donajkowski 2009-01-06
7448328 Hybrid energy off highway vehicle electric power storage system and method 2008-11-11
7444944 Multiple engine hybrid locomotive Robert Dean King, Chi-Houng Lu, Leonard Hill 2008-11-04
7430967 Multimode hybrid energy railway vehicle system and method 2008-10-07
7367291 Locomotive apparatus Gregory A. Marsh 2008-05-06
7344202 System and method for dealing with ground fault conditions that can arise in an electrical propulsion system Mark Alan Linebach, Bret Dwayne Worden, Jeremy Thomas McGarry, Scott Joseph Zarella 2008-03-18
7329960 System and method for propelling a large land-based vehicle using a dual function brushless dynamoelectric machine 2008-02-12
7325498 Hybrid energy off highway vehicle propulsion circuit Henry Todd Young 2008-02-05
7315778 System and method for detecting and responding to fugitive fueling of an internal combustion engine 2008-01-01