Acoustic insulation assembly for an auxiliary power unit having a centrifugal compressor
US-2024200493-A1 · Jun 20, 2024 · US
Mechanical Engineering
Mechanical Engineering · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02C3/08 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 227 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 10 |
| 2017 | 20 |
| 2018 | 17 |
| 2019 | 18 |
| 2020 | 39 |
| 2021 | 24 |
| 2022 | 31 |
| 2023 | 20 |
| 2024 | 19 |
| 2025 | 13 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Diffuser pipe with non-axisymmetric end wall
US-2019316600-A1 · Oct 17, 2019 · US
Centrifugal compressor apparatus
US-10428823-B2 · Oct 1, 2019 · US
Counter-rotating compressor
US-10378551-B2 · Aug 13, 2019 · US
Air delivery system for a gas turbine engine
US-2019063324-A1 · Feb 28, 2019 · US
Axi-centrifugal compressor
US-2018355791-A1 · Dec 13, 2018 · US
Centrifugal compressor curved diffusing passage portion
US-2018328381-A1 · Nov 15, 2018 · US
Centrifugal impeller for a turbine engine
US-2018313360-A1 · Nov 1, 2018 · US
Method and assembly for reducing secondary heat in a gas turbine engine
US-10077666-B2 · Sep 18, 2018 · US
Diffuser pipe with vortex generators
US-2018180059-A1 · Jun 28, 2018 · US
Split axial-centrifugal compressor
US-9982676-B2 · May 29, 2018 · US
Compressor flow extraction apparatus and methods for supercritical co2 oxy-combustion power generation system
US-2018094580-A1 · Apr 5, 2018 · US
Diffuser pipe with vortex generators
US-9926942-B2 · Mar 27, 2018 · US
Bi-directional compression fan rotor for a gas turbine engine
US-9915199-B2 · Mar 13, 2018 · US
Gas turbine engine compressor impeller cooling air sinks
US-2018066579-A1 · Mar 8, 2018 · US
Gas turbine engine compressor impeller cooling air sinks
US-2018066585-A1 · Mar 8, 2018 · US
Multi-spool gas turbine engine architecture
US-2018023480-A1 · Jan 25, 2018 · US
Gas turbine engine shaft architecture and associated method of disassembly
US-2018023471-A1 · Jan 25, 2018 · US
Gear train architecture for a multi-spool gas turbine engine
US-2018023470-A1 · Jan 25, 2018 · US
Multi-spool gas turbine engine architecture
US-2018023481-A1 · Jan 25, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02C3/08?
- CPC F02C3/08 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02C3/08 (Mechanical Engineering)?
- Our database includes 227 publications tagged with this CPC code.
- Is patent activity under CPC F02C3/08 growing?
- Publication counts under this code: 19 in 2024 vs 13 in 2025 (latest complete years).