Inventor
SPRUCE MARK
GB57 patents
⚠️ This page may combine multiple inventors who share the name “SPRUCE MARK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROLLS ROYCE PLC
47 patentsUS10982563B1Apr 20, 2021
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC20 citations94
US10808626B1Oct 20, 2020
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC11 citations94
US11149652B1Oct 19, 2021
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC13 citations86
US11022044B1Jun 1, 2021
Geared gas turbine engine
ROLLS ROYCE PLC14 citations86
US10859001B1Dec 8, 2020
Gas turbine engine having flight cycle ratio
ROLLS ROYCE PLC13 citations86
US10837370B1Nov 17, 2020
Gas turbine engine including gearbox structure having stiffness
ROLLS ROYCE PLC18 citations86
US11371440B2Jun 28, 2022
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC4 citations84
US10961918B1Mar 30, 2021
Reliable gearbox for gas turbine engine
ROLLS ROYCE PLC8 citations84
US10914241B1Feb 9, 2021
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC5 citations84
US10851715B1Dec 1, 2020
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC7 citations84
US12116938B2Oct 15, 2024
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC1 citations73
US11781487B2Oct 10, 2023
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC2 citations73
US11643974B2May 9, 2023
Reliable gearbox for gas turbine engine
ROLLS ROYCE PLC2 citations73
US11421552B2Aug 23, 2022
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC3 citations73
US11408354B2Aug 9, 2022
Aircraft engine
ROLLS ROYCE PLC3 citations73
US11359548B2Jun 14, 2022
Reliable gearbox for gas turbine engine
ROLLS ROYCE PLC5 citations73
US11274729B2Mar 15, 2022
Turbofan gas turbine engine with gearbox
ROLLS ROYCE PLC4 citations73
US10830154B1Nov 10, 2020
Gas turbine engine having fan shaft stiffness ratio
ROLLS ROYCE PLC5 citations73
US10823084B1Nov 3, 2020
Geared gas turbine engine
ROLLS ROYCE PLC6 citations73
US12297779B2May 13, 2025
Geared gas turbine engine
ROLLS ROYCE PLC1 citations64
US12595766B2Apr 7, 2026
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC0 citations62
US12565860B2Mar 3, 2026
Geared gas turbine engine
ROLLS ROYCE PLC0 citations62
US12553390B2Feb 17, 2026
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC0 citations62
US12385441B2Aug 12, 2025
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC0 citations62
US12359628B2Jul 15, 2025
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC0 citations62
US12297745B2May 13, 2025
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC0 citations62
US12221929B2Feb 11, 2025
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC0 citations62
US12215632B2Feb 4, 2025
Aircraft engine
ROLLS ROYCE PLC0 citations62
US12173661B2Dec 24, 2024
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC0 citations62
US12065975B2Aug 20, 2024
High-power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC0 citations62
US11946382B2Apr 2, 2024
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC0 citations62
US11852081B2Dec 26, 2023
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC0 citations62
US11840965B2Dec 12, 2023
Aircraft engine
ROLLS ROYCE PLC0 citations62
US11781488B2Oct 10, 2023
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC1 citations62
US11739660B2Aug 29, 2023
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC0 citations62
US11725591B2Aug 15, 2023
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC0 citations62
US11692492B2Jul 4, 2023
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC0 citations62
US11643976B2May 9, 2023
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC0 citations62
US11542873B2Jan 3, 2023
Gearboxes for aircraft gas turbine engines
ROLLS ROYCE PLC0 citations62
US11525408B2Dec 13, 2022
Aircraft engine
ROLLS ROYCE PLC0 citations62
US11512648B2Nov 29, 2022
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC0 citations62
US11378015B2Jul 5, 2022
Reliable gearbox for gas turbine engine
ROLLS ROYCE PLC0 citations62
US11313438B2Apr 26, 2022
Turbofan gas turbine engine with gearbox
ROLLS ROYCE PLC1 citations62
US11268452B2Mar 8, 2022
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC0 citations62
US11162431B2Nov 2, 2021
Gas turbine engine having gearbox support shear stress ratio
ROLLS ROYCE PLC1 citations62
US11143112B2Oct 12, 2021
High power epicyclic gearbox and operation thereof
ROLLS ROYCE PLC0 citations62
US11098656B2Aug 24, 2021
Aircraft engine
ROLLS ROYCE PLC0 citations62
ROLLS ROYCE DEUTSCHLAND LTD & CO KG
3 patentsUS10816087B2Oct 27, 2020
Planetary gearing and planet pin for a planetary gearing
ROLLS ROYCE DEUTSCHLAND LTD & CO KG6 citations71
US11085523B2Aug 10, 2021
Planetary gearing
ROLLS ROYCE DEUTSCHLAND LTD & CO KG6 citations69
US10767755B2Sep 8, 2020
Planetary gearing and planet pin for a planetary gearing
ROLLS ROYCE DEUTSCHLAND LTD & CO KG5 citations69
Showing the top 50 of 57 patents by PatentIndex Score.