Reclamation method of foundry sand
US-2026084206-A1 · Mar 26, 2026 · US
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by grinding, blending, mixing, kneading, or stirring
by grinding, blending, mixing, kneading, or stirring · 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 | B22C5/04 |
| Official title | by grinding, blending, mixing, kneading, or stirring |
| Display label | by grinding, blending, mixing, kneading, or stirring |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing core
US-2025214132-A1 · Jul 3, 2025 · US
Casting mold making apparatus and mold making method
US-11554411-B2 · Jan 17, 2023 · US
Display device
US-11373348-B2 · Jun 28, 2022 · US
Casting mold making apparatus and mold making method
US-2021276076-A1 · Sep 9, 2021 · US
Display device
US-2021192811-A1 · Jun 24, 2021 · US
Method of reusing core sand
US-2021129210-A1 · May 6, 2021 · US
Method of reusing core sand
US-10967421-B2 · Apr 6, 2021 · US
Continuous mixing apparatus, system, and continuous mixing method for powder/granular material and viscous liquid
US-10773224-B2 · Sep 15, 2020 · US
Method of producing foamed sand and production apparatus for producing foamed sand
US-10730101-B2 · Aug 4, 2020 · US
Method of reusing core sand
US-2020238367-A1 · Jul 30, 2020 · US
Method of reusing core sand
US-10668525-B2 · Jun 2, 2020 · US
Method of reusing core sand
US-10183322-B2 · Jan 22, 2019 · US
Method of producing foamed sand and production apparatus for producing foamed sand
US-2018326473-A1 · Nov 15, 2018 · US
Continuous mixing apparatus, system, and continuous mixing method for powder/granular material and viscous liquid
US-2018243701-A1 · Aug 30, 2018 · US
Method of reusing core sand
US-2018221939-A1 · Aug 9, 2018 · US
Apparatus and a method for reclaiming foundry sand
US-10035181-B2 · Jul 31, 2018 · US
Method of reusing core sand
US-2017106433-A1 · Apr 20, 2017 · US
Apparatus and a method for reclaiming foundry sand
US-2015096594-A1 · Apr 9, 2015 · US
Method for regenerating the sand of sand molds and sand cores
US-8985184-B2 · Mar 24, 2015 · US