Turbine component assembly
US-2018363510-A1 · Dec 20, 2018 · US
involving springs
involving springs · 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 | F05D2260/52 |
| Official title | involving springs |
| Display label | involving springs |
| Total patents | 255 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 15 |
| 2017 | 18 |
| 2018 | 37 |
| 2019 | 50 |
| 2020 | 53 |
| 2021 | 21 |
| 2022 | 15 |
| 2023 | 18 |
| 2024 | 14 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sealing configurations with active cooling features
US-2018355757-A1 · Dec 13, 2018 · US
Boas segmented heat shield
US-10138750-B2 · Nov 27, 2018 · US
Turboshaft engine for an aircraft, comprising an automatically actuated centering element
US-2018298827-A1 · Oct 18, 2018 · US
Ring seal arrangement
US-2018291756-A1 · Oct 11, 2018 · US
Face seal assembly for variable turbine geometry turbocharger
US-2018291757-A1 · Oct 11, 2018 · US
Bearing Outer Race Retention During High Load Events
US-2018266275-A1 · Sep 20, 2018 · US
Stub shaft
US-2018258769-A1 · Sep 13, 2018 · US
Transmission device of fan
US-2018252225-A1 · Sep 6, 2018 · US
Ram air turbine blades
US-2018230834-A1 · Aug 16, 2018 · US
Constant speed 2 piece ring seal arrangement
US-2018202304-A1 · Jul 19, 2018 · US
Retractable rocket motor igniter
US-2018187631-A1 · Jul 5, 2018 · US
Gas turbine engine article with panel retained by preloaded compliant member
US-2018135464-A1 · May 17, 2018 · US
Airfoil with tie member and spring
US-2018135442-A1 · May 17, 2018 · US
Three-spring ram air turbine actuator
US-2018119772-A1 · May 3, 2018 · US
Variable area nozzle and associated propulsion system and method
US-9957917-B2 · May 1, 2018 · US
Stub shaft
US-9938830-B2 · Apr 10, 2018 · US
Pressure-loaded seals
US-2018087390-A1 · Mar 29, 2018 · US
Torsion spring internal damper
US-9926851-B2 · Mar 27, 2018 · US
Turbine shroud assembly
US-9903218-B2 · Feb 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F05D2260/52?
- CPC F05D2260/52 is the Cooperative Patent Classification code for “involving springs.”
- How many patents are filed under CPC F05D2260/52 (involving springs)?
- Our database includes 255 publications tagged with this CPC code.
- Is patent activity under CPC F05D2260/52 growing?
- Publication counts under this code: 14 in 2024 vs 7 in 2025 (latest complete years).