High power epicyclic gearbox and operation thereof
US-12595766-B2 · Apr 7, 2026 · US
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Spruce Mark patents
Spruce Mark is listed as an inventor on 115 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Spruce Mark |
| Total patents | 115 |
| First publication | May 30, 2019 |
| Latest publication | Apr 7, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Geared gas turbine engine
US-12565860-B2 · Mar 3, 2026 · US
Gearboxes for aircraft gas turbine engines
US-12553390-B2 · Feb 17, 2026 · US
Hybrid transmission component and method for manufacturing thereof
US-2026016051-A1 · Jan 15, 2026 · US
Composite gear
US-2025383011-A1 · Dec 18, 2025 · US
Gearboxes for aircraft gas turbine engines
US-2025341187-A1 · Nov 6, 2025 · US
High power epicyclic gearbox and operation thereof
US-2025314208-A1 · Oct 9, 2025 · US
Shaft for a gas turbine engine
US-12421868-B2 · Sep 23, 2025 · US
Hybrid transmission component for a gas turbine engine
US-2025277473-A1 · Sep 4, 2025 · US
Gearboxes for aircraft gas turbine engines
US-12385441-B2 · Aug 12, 2025 · US
Recent patents
Latest publications not already listed above.
Gearboxes for aircraft gas turbine engines
US-2025250912-A1 · Aug 7, 2025 · US
High power epicyclic gearbox and operation thereof
US-12359628-B2 · Jul 15, 2025 · US
Geared gas turbine engine
US-2025198350-A1 · Jun 19, 2025 · US
Gearboxes for aircraft gas turbine engines
US-12297745-B2 · May 13, 2025 · US
Geared gas turbine engine
US-12297779-B2 · May 13, 2025 · US
Aircraft engine
US-2025129751-A1 · Apr 24, 2025 · US
Shaft for a gas turbine engine
US-2025092799-A1 · Mar 20, 2025 · US
Gearboxes for aircraft gas turbine engines
US-2025067220-A1 · Feb 27, 2025 · US
High power epicyclic gearbox and operation thereof
US-12221929-B2 · Feb 11, 2025 · US
Aircraft engine
US-12215632-B2 · Feb 4, 2025 · US
Geared gas turbine engine
US-2025035050-A1 · Jan 30, 2025 · US
Reliable gearbox for gas turbine engine
US-2025035051-A1 · Jan 30, 2025 · US
High power epicyclic gearbox and operation thereof
US-2024426252-A1 · Dec 26, 2024 · US
Gearboxes for aircraft gas turbine engines
US-12173661-B2 · Dec 24, 2024 · US
High power epicyclic gearbox and operation thereof
US-12116938-B2 · Oct 15, 2024 · US
High power epicyclic gearbox and operation thereof
US-2024295193-A1 · Sep 5, 2024 · US
High-power epicyclic gearbox and operation thereof
US-12065975-B2 · Aug 20, 2024 · US
Aircraft engine
US-2024263587-A1 · Aug 8, 2024 · US
Gearboxes for aircraft gas turbine engines
US-2024200467-A1 · Jun 20, 2024 · US
High Power Epicyclic Gearbox and Operation Thereof
US-2024191660-A1 · Jun 13, 2024 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Rolls Royce Plc | 115 |
| Rolls Royce Deutschland Ltd & Co Kg | 8 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F02C7/36 | 109 |
| F05D2260/40311 | 108 |
| Y02T50/60 | 96 |
| F16H57/08 | 95 |
| F16H1/32 | 80 |