GS

Gregory J. Speckhart

Caterpillar: 12 patents #441 of 8,398Top 6%
📍 Peoria, IL: #133 of 1,769 inventorsTop 8%
🗺 Illinois: #7,280 of 84,256 inventorsTop 9%
Overall (All Time): #400,475 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
12431815 Start-up control for multilevel dual active bridge converter Karthik Desingu, Jyothiraditya Ramaswamy, James Siegle 2025-09-30
12066502 Open phase detection Dachuan Yu, Jesse Gerdes 2024-08-20
11894682 Methods and systems for off-grid load stabilization of energy distribution systems Ronald Christopher Gayles, Dachuan Yu 2024-02-06
9729008 Life degradation mitigation for transient response energy storage John J. Votoupal, Dachuan Yu, Gregory S. Hasler 2017-08-08
9722445 Control of hybrid energy storage system for high pulse load Dachuan Yu, Eric M. Andris 2017-08-01
8946915 Adaptive variable speed genset control Dachuan Yu, Eric M. Andris 2015-02-03
8242735 Method and system for temperature-based power converter control Bruce H. Hein, Thomas M. Sopko, Jackson Wai 2012-08-14
8004226 Method and system for detecting a failed current sensor in a three-phase machine Mark Hartman, Jesse Gerdes, Jackson Wai 2011-08-23
7511449 Electric motor system implementing vector and slip control Mark Hartman, Jackson Wai, Joshua Williams 2009-03-31
6715467 Method and apparatus for engine braking Bryan E. Nelson, Joshua C. Ruedin, Jeffrey M. Thate 2004-04-06
6508107 Method and apparatus for determining an oil grade of an actuating fluid Darwin R. Carrell, Larry E. Kendrick, Michael S. Lukich 2003-01-21
6415652 Method and apparatus for determining an oil grade of an actuating fluid Darwin R. Carrell, Larry E. Kendrick, Michael S. Lukich 2002-07-09