Inventor
KERNWEIN JEFFREY D
US54 patents
⚠️ This page may combine multiple inventors who share the name “KERNWEIN JEFFREY D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WESTINGHOUSE AIR BRAKE TECH CORP
24 patentsUS9616905B2Apr 11, 2017
Train navigation system and method
WESTINGHOUSE AIR BRAKE TECH CORP7 citations81
US11345377B2May 31, 2022
Vehicle motion sensing system
WESTINGHOUSE AIR BRAKE TECH CORP2 citations73
US10392040B2Aug 27, 2019
Systems and methods for determining track location and/or direction of travel
WESTINGHOUSE AIR BRAKE TECH CORP6 citations72
US10859714B2Dec 8, 2020
Real-time kinematics for end of train
WESTINGHOUSE AIR BRAKE TECH CORP2 citations71
US10836411B2Nov 17, 2020
Method and apparatus to verify train integrity by comparing head of train and end of train telemetry
WESTINGHOUSE AIR BRAKE TECH CORP3 citations71
US10457307B2Oct 29, 2019
Wireless crossing activation system and method
WESTINGHOUSE AIR BRAKE TECH CORP4 citations71
US11385066B2Jul 12, 2022
Vehicle navigation and control system and method
WESTINGHOUSE AIR BRAKE TECH CORP2 citations70
US11148692B2Oct 19, 2021
Alerting system and method
WESTINGHOUSE AIR BRAKE TECH CORP5 citations68
US11208130B2Dec 28, 2021
Method and apparatus to improve unmonitored switch position reporting
WESTINGHOUSE AIR BRAKE TECH CORP3 citations65
US11772692B2Oct 3, 2023
Method and apparatus for vehicle-based switch locking in a rail network
WESTINGHOUSE AIR BRAKE TECH CORP0 citations62
US11142871B2Oct 12, 2021
Vehicle management system
WESTINGHOUSE AIR BRAKE TECH CORP0 citations62
US10878250B2Dec 29, 2020
Determining presence of a rail vehicle on a track based on image data
WESTINGHOUSE AIR BRAKE TECH CORP1 citations62
US10400396B2Sep 3, 2019
Switch alignment detection enforcement system and method
WESTINGHOUSE AIR BRAKE TECH CORP1 citations62
US9254855B2Feb 9, 2016
Computer-implemented method and system for managing conditional authorities in a vehicle network
WESTINGHOUSE AIR BRAKE TECH CORP2 citations62
US11794778B2Oct 24, 2023
Vehicle location determining system and method
WESTINGHOUSE AIR BRAKE TECH CORP1 citations59
US12060095B2Aug 13, 2024
Alerting system and method
WESTINGHOUSE AIR BRAKE TECH CORP0 citations58
US11754725B2Sep 12, 2023
Vehicle location and control system
WESTINGHOUSE AIR BRAKE TECH CORP0 citations55
US10059354B2Aug 28, 2018
Locomotive-to-wayside device communication system and method and wayside device therefor
WESTINGHOUSE AIR BRAKE TECH CORP1 citations52
US9469317B2Oct 18, 2016
Locomotive-to-wayside device communication system and method and wayside device therefor
WESTINGHOUSE AIR BRAKE TECH CORP1 citations52
US11535286B2Dec 27, 2022
Target activation system for transportation network
WESTINGHOUSE AIR BRAKE TECH CORP0 citations50
US11454728B2Sep 27, 2022
Real-time kinematics for a vehicle system
WESTINGHOUSE AIR BRAKE TECH CORP0 citations50
US11511782B2Nov 29, 2022
Control system for enforcing conditional authorities using vehicle-to-vehicle monitoring
WESTINGHOUSE AIR BRAKE TECH CORP0 citations49
US11953338B2Apr 9, 2024
Remote initialization system for a vehicle system
WESTINGHOUSE AIR BRAKE TECH CORP0 citations48
US11639188B2May 2, 2023
Work zone instruction verification system
WESTINGHOUSE AIR BRAKE TECH CORP0 citations47
VERMEER MFG CO
8 patentsUS7011258B2Mar 14, 2006
Brush chipper and methods of operating same
VERMEER MFG CO64 citations97
US7637444B2Dec 29, 2009
Brush chipper and methods of operating same
VERMEER MFG CO24 citations95
US7044409B2May 16, 2006
Brush chipper and methods of operating same
VERMEER MFG CO42 citations95
US7040558B2May 9, 2006
Brush chipper and methods of operating same
VERMEER MFG CO32 citations95
US7654479B2Feb 2, 2010
Method of controlling a brush chipper
VERMEER MFG CO9 citations92
US7232083B2Jun 19, 2007
Method of operating brush chippers
VERMEER MFG CO22 citations92
US7597279B1Oct 6, 2009
Brush chipper and methods of operating same
VERMEER MFG CO8 citations83
US7624937B2Dec 1, 2009
Method of controlling a brush chipper
VERMEER MFG CO5 citations73
WABTEC HOLDING CORP
6 patentsUS9283945B1Mar 15, 2016
Braking systems and methods of determining a safety factor for a braking model for a train
WABTEC HOLDING CORP66 citations96
US7398140B2Jul 8, 2008
Operator warning system and method for improving locomotive operator vigilance
WABTEC HOLDING CORP55 citations92
US8914162B2Dec 16, 2014
System, method, and apparatus to detect and report track structure defects
WABTEC HOLDING CORP14 citations77
US9469310B2Oct 18, 2016
System, apparatus, and method for automatically controlling a locomotive
WABTEC HOLDING CORP7 citations76
US9846025B2Dec 19, 2017
Track data determination system and method
WABTEC HOLDING CORP12 citations73
US8000873B2Aug 16, 2011
Braking system
WABTEC HOLDING CORP3 citations61
TRANSP IP HOLDINGS LLC
5 patentsUS11673561B2Jun 13, 2023
Vehicle control system
TRANSP IP HOLDINGS LLC2 citations69
US12571641B2Mar 10, 2026
Vehicle navigation and control system and method
TRANSP IP HOLDINGS LLC0 citations60
US12128938B2Oct 29, 2024
System and method for controlling an axle of a vehicle
TRANSP IP HOLDINGS LLC0 citations60
US12420850B2Sep 23, 2025
Vehicle control system
TRANSP IP HOLDINGS LLC0 citations57
US12473000B2Nov 18, 2025
Vehicle control systems and methods
TRANSP IP HOLDINGS LLC0 citations54
KERNWEIN JEFFREY D
4 patentsUS8214091B2Jul 3, 2012
System and method to determine train location in a track network
KERNWEIN JEFFREY D26 citations92
US9403517B2Aug 2, 2016
System and method for determining air propagation data in a braking arrangement of a train
KERNWEIN JEFFREY D4 citations71
US8175764B2May 8, 2012
System and method for identifying a condition of an upcoming feature in a track network
KERNWEIN JEFFREY D5 citations62
US8427310B2Apr 23, 2013
Method, system and apparatus for monitoring lamp circuits in a cab signal system
KERNWEIN JEFFREY D1 citations51
WABTEC RAILWAY ELECTRONICS INC
2 patentsUS6128558AOct 3, 2000
Method and apparatus for using machine vision to detect relative locomotive position on parallel tracks
WABTEC RAILWAY ELECTRONICS INC98 citations97
US6208246B1Mar 27, 2001
Method and apparatus for improving railcar visibility at grade crossings
WABTEC RAILWAY ELECTRONICS INC3 citations61
KNOTT JEFFREY G
1 patentShowing the top 50 of 54 patents by PatentIndex Score.