Cam ring and plate module for vehicle vacuum pumps, and method of manufacturing the same
US-2025250659-A1 · Aug 7, 2025 · US
Cast iron
Cast iron · 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 | F05C2201/0439 |
| Official title | Cast iron |
| Display label | Cast iron |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 4 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cam ring and plate module for vehicle vacuum pumps, and method of manufacturing the same
US-12312664-B2 · May 27, 2025 · US
Cam ring and plate module for vehicle vacuum pumps, and method of manufacturing the same
US-2025122601-A1 · Apr 17, 2025 · US
Pump device
US-11982270-B2 · May 14, 2024 · US
Pump device
US-2023417243-A1 · Dec 28, 2023 · US
Sealing structure and scroll air compressor having same
US-11725657-B2 · Aug 15, 2023 · US
Scroll compressor with wrap having gradually decreasing thickness
US-11668303-B2 · Jun 6, 2023 · US
Oil separator and relief valve of a screw compressor for a utility vehicle
US-11286938-B2 · Mar 29, 2022 · US
Sealing structure and scroll air compressor having same
US-2022034322-A1 · Feb 3, 2022 · US
Austempered grey iron scroll and method of making thereof
US-10844855-B2 · Nov 24, 2020 · US
Scroll compressor with wrap having gradually decreasing thickness
US-10724521-B2 · Jul 28, 2020 · US
Scroll compressor with coated sliding surface
US-10711783-B2 · Jul 14, 2020 · US
Scroll compressor with wrap having gradually decreasing thickness
US-2020102957-A1 · Apr 2, 2020 · US
Screw Compressor for a Utility Vehicle
US-2019338776-A1 · Nov 7, 2019 · US
Compressor, oil-free screw compressor, and method of manufacturing casing used therefor
US-10316841-B2 · Jun 11, 2019 · US
Bearing cap of internal combustion engine
US-10267352-B2 · Apr 23, 2019 · US
Reciprocating piston engine with liner
US-10060383-B2 · Aug 28, 2018 · US
Austempered grey iron scroll and method of making thereof
US-2018187678-A1 · Jul 5, 2018 · US
Rotary compressor having vane that has diamond-like carbon layer
US-9890786-B2 · Feb 13, 2018 · US
Bearing cap of internal combustion engine
US-2017314507-A1 · Nov 2, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F05C2201/0439?
- CPC F05C2201/0439 is the Cooperative Patent Classification code for “Cast iron.”
- How many patents are filed under CPC F05C2201/0439 (Cast iron)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC F05C2201/0439 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).