Inventor
MADDEN CHRISTOPHER P
GB51 patents
Patents
50 patentsUS11591973B1Feb 28, 2023
Gas turbine operation
ROLLS ROYCE PLC18 citations95
US11585282B1Feb 21, 2023
Fuel characteristics
ROLLS ROYCE PLC27 citations94
US11994072B1May 28, 2024
Fuel management system
ROLLS ROYCE PLC16 citations86
US11708796B2Jul 25, 2023
Performance parameters
ROLLS ROYCE PLC7 citations86
US11708769B2Jul 25, 2023
Exhaust content
ROLLS ROYCE PLC7 citations86
US11585278B1Feb 21, 2023
Aviation fuel
ROLLS ROYCE PLC9 citations86
US5398509AMar 21, 1995
Gas turbine engine combustor
ROLLS ROYCE PLC33 citations86
US12320298B2Jun 3, 2025
Aircraft heat management
ROLLS ROYCE PLC1 citations75
US12018841B1Jun 25, 2024
Gas turbine operating conditions
ROLLS ROYCE PLC5 citations75
US11780597B2Oct 10, 2023
Aircraft propulsion
ROLLS ROYCE PLC4 citations75
US12180899B2Dec 31, 2024
Fuel delivery
ROLLS ROYCE PLC2 citations73
US12168958B2Dec 17, 2024
Aircraft fuel control to subsets of fuel spray nozzles
ROLLS ROYCE PLC2 citations73
US12111055B2Oct 8, 2024
Aircraft fuelling
ROLLS ROYCE PLC2 citations73
US12098684B2Sep 24, 2024
Gas turbine operation
ROLLS ROYCE PLC2 citations73
US12071894B2Aug 27, 2024
Aircraft heat management
ROLLS ROYCE PLC1 citations73
US11821373B2Nov 21, 2023
Staged combustion
ROLLS ROYCE PLC2 citations73
US11815031B2Nov 14, 2023
Fuelling schedule
ROLLS ROYCE PLC2 citations73
US11732659B2Aug 22, 2023
Controlling soot
ROLLS ROYCE PLC2 citations73
US11643978B2May 9, 2023
Method of controlling aircraft vapour trails and propulsion system providing for control of aircraft vapour trails
ROLLS ROYCE PLC3 citations73
US11530652B2Dec 20, 2022
Water injection
ROLLS ROYCE PLC4 citations73
US11530651B2Dec 20, 2022
Staged combustion
ROLLS ROYCE PLC2 citations73
US12584448B2Mar 24, 2026
Gas turbine operation
ROLLS ROYCE PLC0 citations63
US12215635B2Feb 4, 2025
Fuel delivery
ROLLS ROYCE PLC0 citations63
US12123362B2Oct 22, 2024
Loading parameters
ROLLS ROYCE PLC0 citations63
US11788477B1Oct 17, 2023
Loading parameters
ROLLS ROYCE PLC0 citations63
US12503983B2Dec 23, 2025
Propulsion system control
ROLLS ROYCE PLC0 citations62
US12480656B2Nov 25, 2025
Aircraft fuelling
ROLLS ROYCE PLC0 citations62
US12467410B2Nov 11, 2025
Gas turbine performance
ROLLS ROYCE PLC0 citations62
US12442334B2Oct 14, 2025
Gas turbine fuel temperature management
ROLLS ROYCE PLC0 citations62
US12398675B2Aug 26, 2025
Aircraft heat management
ROLLS ROYCE PLC0 citations62
US12378913B2Aug 5, 2025
Aircraft heat management
ROLLS ROYCE PLC0 citations62
US12378920B2Aug 5, 2025
Gas turbine engine comprising fuel-oil heat exchangers fluidly connected to fuel spray nozzles
ROLLS ROYCE PLC0 citations62
US12359618B2Jul 15, 2025
Gas turbine fuel return line
ROLLS ROYCE PLC0 citations62
US12331685B2Jun 17, 2025
Fuel viscosity
ROLLS ROYCE PLC0 citations62
US12331692B2Jun 17, 2025
Flight profile
ROLLS ROYCE PLC0 citations62
US12297781B2May 13, 2025
Operating an aircraft
ROLLS ROYCE PLC0 citations62
US12240614B2Mar 4, 2025
Aircraft propulsion
ROLLS ROYCE PLC0 citations62
US12152542B2Nov 26, 2024
Transmittance parameters
ROLLS ROYCE PLC0 citations62
US12152496B2Nov 26, 2024
Exhaust content
ROLLS ROYCE PLC0 citations62
US12152497B2Nov 26, 2024
Contrail parameters
ROLLS ROYCE PLC0 citations62
US12085029B2Sep 10, 2024
Propulsion system control
ROLLS ROYCE PLC0 citations62
US12078112B2Sep 3, 2024
Determination of fuel characteristics
ROLLS ROYCE PLC0 citations62
US12060838B2Aug 13, 2024
Determination of fuel characteristics
ROLLS ROYCE PLC0 citations62
US12044177B2Jul 23, 2024
Gas turbine engine and method of operating gas turbine engine
ROLLS ROYCE PLC0 citations62
US11988144B2May 21, 2024
Fuel viscosity
ROLLS ROYCE PLC0 citations62
US12595912B2Apr 7, 2026
Gas turbine engine and method thereof for reducing nonvolatile particulate matter emissions
ROLLS ROYCE PLC0 citations52
US12553386B2Feb 17, 2026
Emissions of non-volatile particulate matter from gas turbine engines combusting sustainable aviation fuel and fossil-based hydrocarbon fuel
ROLLS ROYCE PLC0 citations52
US12523376B2Jan 13, 2026
Gas turbine performance
ROLLS ROYCE PLC0 citations52
US12241629B2Mar 4, 2025
Controlling soot
ROLLS ROYCE PLC0 citations52
US12158115B2Dec 3, 2024
Gas turbine engine heat exchange
ROLLS ROYCE PLC0 citations52
Showing the top 50 of 51 patents by PatentIndex Score.