Countergravity Casting Apparatus and Desulfurization Methods
US-2026048433-A1 · Feb 19, 2026 · US
Filters
Filters · 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 | B22C9/086 |
| Official title | {Filters} |
| Display label | Filters |
| Total patents | 49 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 11 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low-Pressure Mold and Production Process for Aluminum Alloy Integrated Brake Calipers
US-2025381595-A1 · Dec 18, 2025 · US
Molten metal filtration box heating apparatus
US-12370597-B2 · Jul 29, 2025 · US
Molten metal filter device for casting vehicle components
US-12280421-B2 · Apr 22, 2025 · US
Digital Die Casting Machine with Mold Temperature Control
US-2025058375-A1 · Feb 20, 2025 · US
Molten metal filter device for casting vehicle components
US-2024424551-A1 · Dec 26, 2024 · US
Additively manufactured casting core-shell mold and ceramic shell with variable thermal properties
US-12168254-B2 · Dec 17, 2024 · US
Riser tube coating for cast aluminum alloy and using method thereof
US-12090545-B2 · Sep 17, 2024 · US
Electromagnetic priming of molten metal filters
US-12059643-B2 · Aug 13, 2024 · US
Process to make a ceramic filter for metal casting
US-11992874-B2 · May 28, 2024 · US
Molten metal filter
US-2024165696-A1 · May 23, 2024 · US
Riser Tube Coating for Cast Aluminum Alloy and Using Method Thereof
US-2023381853-A1 · Nov 30, 2023 · US
Inspection cup for inspecting impurity in molten metal for die casting and method of inspecting impurity in molten metal for die casting using inspection cup
US-2023372996-A1 · Nov 23, 2023 · US
Countergravity casting apparatus and desulfurization methods
US-11772152-B2 · Oct 3, 2023 · US
Filter handling tool
US-2023304124-A1 · Sep 28, 2023 · US
Methods for producing 2024 and 7075 aluminum alloys by recycling waste aircraft aluminum alloys
US-11685966-B2 · Jun 27, 2023 · US
Method and device for casting a rotor of a compressor, vacuum pump and/or expander device with a longitudinal axis
US-11673189-B2 · Jun 13, 2023 · US
Filter handling tool
US-11674198-B2 · Jun 13, 2023 · US
Additively manufactured casting core-shell mold with integrated filter and ceramic shell
US-11529672-B2 · Dec 20, 2022 · US
Inspection cup for inspecting impurity in molten metal for die casting and method of inspecting impurity in molten metal for die casting using inspection cup
US-2022362836-A1 · Nov 17, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B22C9/086?
- CPC B22C9/086 is the Cooperative Patent Classification code for “Filters.”
- How many patents are filed under CPC B22C9/086 (Filters)?
- Our database includes 49 publications tagged with this CPC code.
- Is patent activity under CPC B22C9/086 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).