Stirling cycle machine
US-2025067230-A1 · Feb 27, 2025 · US
Sealing of the crankcase · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02G2253/80 |
| Official title | Sealing of the crankcase |
| Display label | Sealing of the crankcase |
| Total patents | 7 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025067230-A1 · Feb 27, 2025 · US
US-2025027461-A1 · Jan 23, 2025 · US
US-12104552-B2 · Oct 1, 2024 · US
US-12078123-B2 · Sep 3, 2024 · US
US-11079145-B2 · Aug 3, 2021 · US
US-2019376468-A1 · Dec 12, 2019 · US
US-2018179988-A1 · Jun 28, 2018 · US