Rotary valve with control element
US-2019331229-A1 · Oct 31, 2019 · US
of engine cylinder parts or of piston parts other than piston rings (of piston rings B22F5/02)
of engine cylinder parts or of piston parts other than piston rings (of piston rings B22F5/02) · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B22F5/008 |
| Official title | {of engine cylinder parts or of piston parts other than piston rings (of piston rings B22F5/02)} |
| Display label | of engine cylinder parts or of piston parts other than piston rings (of piston rings B22F5/02) |
| Total patents | 202 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 14 |
| 2017 | 16 |
| 2018 | 18 |
| 2019 | 15 |
| 2020 | 38 |
| 2021 | 22 |
| 2022 | 23 |
| 2023 | 19 |
| 2024 | 15 |
| 2025 | 12 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cam follower roller device, notably for a fuel injection pump
US-2019168306-A1 · Jun 6, 2019 · US
Insert part that can be infiltrated
US-10207319-B2 · Feb 19, 2019 · US
Sintered valve seat
US-2018283234-A1 · Oct 4, 2018 · US
Methods for Additive Manufacturing of a Single Piece Piston
US-2018272429-A1 · Sep 27, 2018 · US
Steel piston with metallurgically bonded bushing and method of manufacturing
US-2018236555-A1 · Aug 23, 2018 · US
Method for manufacturing sintered body and sintered body
US-2018236548-A1 · Aug 23, 2018 · US
Valve seat
US-10036287-B2 · Jul 31, 2018 · US
Tribological system, comprising a valve seat ring and a valve
US-2018209311-A1 · Jul 26, 2018 · US
Method of manufacturing a component
US-2018200799-A1 · Jul 19, 2018 · US
Methods for manufacturing a rotor assembly for an electrical machine
US-2018200823-A1 · Jul 19, 2018 · US
Permanent magnet, rotary electric machine, amd vehicle
US-2018190415-A1 · Jul 5, 2018 · US
Lever for actuating gas exchange valves of an internal combustion engine
US-2018185920-A1 · Jul 5, 2018 · US
Thermometric metallurgy materials
US-2018169751-A1 · Jun 21, 2018 · US
Method of making aluminum or magnesium based composite engine blocks or other parts with in-situ formed reinforced phases through squeeze casting or semi-solid metal forming and post heat treatment
US-9999921-B2 · Jun 19, 2018 · US
End piece for camshaft and method of manufacturing the same
US-2018161846-A1 · Jun 14, 2018 · US
Valve seat insert
US-2018163579-A1 · Jun 14, 2018 · US
Method for producing a swashplate
US-2018154449-A1 · Jun 7, 2018 · US
Piston housing system and apparatus
US-9958068-B2 · May 1, 2018 · US
Composite Pistons for Rotary Engines
US-2018105903-A9 · Apr 19, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B22F5/008?
- CPC B22F5/008 is the Cooperative Patent Classification code for “of engine cylinder parts or of piston parts other than piston rings (of piston rings B22F5/02).”
- How many patents are filed under CPC B22F5/008 (of engine cylinder parts or of piston parts other than piston rings (of piston rings B22F5/02))?
- Our database includes 202 publications tagged with this CPC code.
- Is patent activity under CPC B22F5/008 growing?
- Publication counts under this code: 15 in 2024 vs 12 in 2025 (latest complete years).