Inventor
PRIMUS ROY JAMES
US42 patents
⚠️ This page may combine multiple inventors who share the name “PRIMUS ROY JAMES”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN ELECTRIC
26 patentsUS7137253B2Nov 21, 2006
Method and apparatus for actively turbocharging an engine
GEN ELECTRIC71 citations98
US7487631B2Feb 10, 2009
System and method for supplying reductants to an emission treatment system
GEN ELECTRIC27 citations92
US7296555B2Nov 20, 2007
System and method for operating a turbo-charged engine
GEN ELECTRIC25 citations92
US10119460B2Nov 6, 2018
Integrated turboshaft engine
GEN ELECTRIC18 citations85
US10337347B2Jul 2, 2019
Method and systems for an energy recovery and energy converting unit for an engine
GEN ELECTRIC7 citations84
US7992389B2Aug 9, 2011
Method and apparatus for actively turbocharging an engine
GEN ELECTRIC13 citations84
US8375714B2Feb 19, 2013
System and method for operating a turbocharged engine
GEN ELECTRIC14 citations83
US9903284B1Feb 27, 2018
Dual-fuel engine system and method having the same
GEN ELECTRIC9 citations82
US7360522B2Apr 22, 2008
System and method for operating a turbo-charged engine
GEN ELECTRIC15 citations78
US10183683B2Jan 22, 2019
Vehicle control system
GEN ELECTRIC2 citations72
US11008932B2May 18, 2021
Engine mixing structures
GEN ELECTRIC6 citations71
US9964056B2May 8, 2018
System and method for controlling exhaust emissions and specific fuel consumption of an engine
GEN ELECTRIC2 citations71
US9140179B2Sep 22, 2015
System and method for controlling exhaust emissions and specific fuel consumption of an engine
GEN ELECTRIC5 citations70
US11192458B2Dec 7, 2021
Hybrid propulsion system and method of controlling same
GEN ELECTRIC3 citations69
US9863342B2Jan 9, 2018
System and method for controlling an engine air-fuel ratio
GEN ELECTRIC4 citations69
US9695723B2Jul 4, 2017
Combustion system including a piston crown and fuel injector
GEN ELECTRIC2 citations68
US10774771B2Sep 15, 2020
Engine control system for reducing particulate matter
GEN ELECTRIC1 citations62
US10190509B2Jan 29, 2019
System and method for controlling a dual fuel engine
GEN ELECTRIC1 citations62
US7721532B2May 25, 2010
Method and system for regeneration of a catalyst
GEN ELECTRIC6 citations62
US10837401B2Nov 17, 2020
Piston crown for a combustion system and an associated method thereof
GEN ELECTRIC1 citations59
US7885754B2Feb 8, 2011
Fuel injection system and method of operating the same for an engine
GEN ELECTRIC4 citations59
US10294846B2May 21, 2019
Systems for vehicle particulate filter regeneration
GEN ELECTRIC0 citations52
US10018130B2Jul 10, 2018
Fuel injector wear compensation methodology by altering injection schedule
GEN ELECTRIC0 citations52
US7879295B2Feb 1, 2011
Conversion system for reducing NOx emissions
GEN ELECTRIC1 citations51
US10683796B2Jun 16, 2020
Systems and methods for reduced oil carryover
GEN ELECTRIC0 citations39
US10094324B2Oct 9, 2018
System and method of operating an internal combustion engine
GEN ELECTRIC0 citations36
TRANSP IP HOLDINGS LLC
11 patentsUS11549429B2Jan 10, 2023
Engine mixing structures
TRANSP IP HOLDINGS LLC5 citations73
US10900373B2Jan 26, 2021
Method and systems for an energy recovery and energy converting unit for an engine
TRANSP IP HOLDINGS LLC2 citations73
US10570835B2Feb 25, 2020
Substitution rate control system for an engine and an associated method thereof
TRANSP IP HOLDINGS LLC2 citations72
US11781443B2Oct 10, 2023
Method and systems for an energy recovery and energy converting unit for an engine
TRANSP IP HOLDINGS LLC0 citations62
US11643963B2May 9, 2023
Methods and systems for electric turbocharger control
TRANSP IP HOLDINGS LLC0 citations62
US11346238B2May 31, 2022
Method and systems for an energy recovery and energy converting unit for an engine
TRANSP IP HOLDINGS LLC0 citations62
US12337817B2Jun 24, 2025
Hybrid propulsion system and method of controlling same
TRANSP IP HOLDINGS LLC1 citations60
US12152530B2Nov 26, 2024
Turbine-compressor assembly and method
TRANSP IP HOLDINGS LLC0 citations60
US11536221B2Dec 27, 2022
Piston crown for a combustion system and an associated method thereof
TRANSP IP HOLDINGS LLC0 citations59
US11199155B2Dec 14, 2021
Piston crown for a combustion system and an associated method thereof
TRANSP IP HOLDINGS LLC0 citations59
US10947917B2Mar 16, 2021
Methods and system for skip-firing of an engine
TRANSP IP HOLDINGS LLC1 citations57