Self-guiding carbon seal system
US-12163432-B2 · Dec 10, 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 | F02C7/28 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 1,694 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 108 |
| 2016 | 153 |
| 2017 | 145 |
| 2018 | 190 |
| 2019 | 191 |
| 2020 | 235 |
| 2021 | 174 |
| 2022 | 170 |
| 2023 | 115 |
| 2024 | 100 |
| 2025 | 91 |
| 2026 | 22 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Seal support assembly for a turbine engine
US-2024301801-A1 · Sep 12, 2024 · US
Device for activating a passive ejector valve for pressurising a turbojet engine chamber for an aircraft
US-9212757-B2 · Dec 15, 2015 · US
Cooled finger seal
US-2015354386-A1 · Dec 10, 2015 · US
Multiple ventilated rails for sealing of combustor heat shields
US-2015354818-A1 · Dec 10, 2015 · US
Brush seal device
US-2015354707-A1 · Dec 10, 2015 · US
Sealing device and gas turbine having the same
US-9206705-B2 · Dec 8, 2015 · US
Sealing arrangement for axially split turbomachines
US-2015345503-A1 · Dec 3, 2015 · US
Heat shield for a casing
US-2015345329-A1 · Dec 3, 2015 · US
Brush seal device
US-2015345640-A1 · Dec 3, 2015 · US
Systems, methods, and apparatus for a turbine interstage rim seal
US-9200527-B2 · Dec 1, 2015 · US
Multi-purpose gas turbine seal support and assembly
US-2015330244-A1 · Nov 19, 2015 · US
Flow diverter element and assembly
US-2015330245-A1 · Nov 19, 2015 · US
Sealing assembly for turbomachine
US-2015330402-A1 · Nov 19, 2015 · US
Turbomachine
US-9175576-B2 · Nov 3, 2015 · US
Combination flow divider and bearing support
US-2015308344-A1 · Oct 29, 2015 · US
Gas turbine engine buffer system
US-2015300266-A1 · Oct 22, 2015 · US
Interstage seal assembly for gas turbine engine
US-2015300189-A1 · Oct 22, 2015 · US
Spring carrier and removable seal carrier
US-9163522-B2 · Oct 20, 2015 · US
Gas turbine engine and seal assembly therefore
US-2015285152-A1 · Oct 8, 2015 · US
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02C7/28?
- CPC F02C7/28 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02C7/28 (Mechanical Engineering)?
- Our database includes 1,694 publications tagged with this CPC code.
- Is patent activity under CPC F02C7/28 growing?
- Publication counts under this code: 100 in 2024 vs 91 in 2025 (latest complete years).