Additive manufacturing with nanofunctionalized precursors
US-2025242407-A1 · Jul 31, 2025 · US
of piston rings
of piston rings · 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 | B22F5/02 |
| Official title | of piston rings |
| Display label | of piston rings |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Additive manufacturing with nanofunctionalized precursors
US-12280432-B2 · Apr 22, 2025 · US
Additive manufacturing with nanofunctionalized precursors
US-2024082913-A1 · Mar 14, 2024 · US
Additive manufacturing with nanofunctionalized precursors
US-11919085-B2 · Mar 5, 2024 · US
Manufacturing of aluminum piston with cast iron ring carrier using powder bed fusion method
US-11821384-B1 · Nov 21, 2023 · US
Manufacturing of aluminum piston with cast iron ring carrier using powder bed fusion method
US-2023349342-A1 · Nov 2, 2023 · US
Method for producing a piston
US-11780009-B2 · Oct 10, 2023 · US
Method for producing a piston
US-2022032371-A1 · Feb 3, 2022 · US
Additive manufacturing with nanofunctionalized precursors
US-2021283689-A1 · Sep 16, 2021 · US
Additive manufacturing with nanofunctionalized precursors
US-11117193-B2 · Sep 14, 2021 · US
Copper alloy compositions having enhanced thermal conductivity and wear resistance
US-2021078073-A1 · Mar 18, 2021 · US
Additive manufacturing using two or more sources of atomized metal particles
US-2020198005-A1 · Jun 25, 2020 · US
Cylinder head assembly having a hybrid valve seat insert
US-2020173317-A1 · Jun 4, 2020 · US
Centrifugal additive manufacturing apparatus and method
US-2020156290-A1 · May 21, 2020 · US
Manufacturing method of wear-resistant iron-based sintered alloy and wear-resistant iron-based sintered alloy
US-10619229-B2 · Apr 14, 2020 · US
Light weight inserts for piston rings, methods of manufacturing thereof and articles comprising the same
US-2020070240-A1 · Mar 5, 2020 · US
Method for producing a valve seat ring
US-10272496-B2 · Apr 30, 2019 · US
Methods for Additive Manufacturing of a Single Piece Piston
US-2018272429-A1 · Sep 27, 2018 · US
Additive manufacturing with nanofunctionalized precursors
US-2018214949-A1 · Aug 2, 2018 · US
Piston compression rings of copper-beryllium alloys
US-2018195613-A1 · Jul 12, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B22F5/02?
- CPC B22F5/02 is the Cooperative Patent Classification code for “of piston rings.”
- How many patents are filed under CPC B22F5/02 (of piston rings)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC B22F5/02 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).