Activated carbon beads with reduced dust spillage
US-2024391781-A1 · Nov 28, 2024 · US
Naturally occurring clays or bleaching earth
Naturally occurring clays or bleaching earth · 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 | B01J20/12 |
| Official title | Naturally occurring clays or bleaching earth |
| Display label | Naturally occurring clays or bleaching earth |
| Total patents | 446 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 33 |
| 2016 | 35 |
| 2017 | 36 |
| 2018 | 37 |
| 2019 | 53 |
| 2020 | 45 |
| 2021 | 44 |
| 2022 | 46 |
| 2023 | 32 |
| 2024 | 40 |
| 2025 | 40 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing a humidity control device and humidity control device
US-2024207816-A1 · Jun 27, 2024 · US
Method for adsorbilng radioactive material
US-2016314864-A1 · Oct 27, 2016 · US
Dolomite-based heavy metal adsorbent for heavy metal, halogen and metalloid, a method for preparing thereof, a method for controlling a quality thereof, and a method for adsorbing heavy metal, halogen and metalloid
US-2016288084-A1 · Oct 6, 2016 · US
Dolomite-based material having high specific surface area, a method for preparing thereof, a method for controlling a quality thereof, and a method for adsorbing heavy metal, halogen and metalloid
US-2016288085-A1 · Oct 6, 2016 · US
Super absorbent polymer and manufacturing method thereof
US-2016288088-A1 · Oct 6, 2016 · US
Zeolitic granular material having a connected structure
US-2016289146-A1 · Oct 6, 2016 · US
Method for the removal of organic components from a mixture of organic components and water
US-9458032-B2 · Oct 4, 2016 · US
Chemical filter
US-2016279597-A1 · Sep 29, 2016 · US
Method for preparing a sorbent
US-2016279596-A1 · Sep 29, 2016 · US
Process for nitrile removal from hydrocarbon feeds
US-9428427-B2 · Aug 30, 2016 · US
Absorbent Fibrous Structures Comprising a Soil Absorbing Agent and a Detackifier
US-2016236172-A1 · Aug 18, 2016 · US
Method and composition for removing radioactive cesium
US-9412479-B2 · Aug 9, 2016 · US
Method for granulation of absorbent and adsorbent granules prepared by the same
US-9409147-B2 · Aug 9, 2016 · US
Composition and method for removing metal contaminants
US-9404166-B2 · Aug 2, 2016 · US
Catalyst additive for reduction of sulfur in catalytically cracked gasoline
US-9403155-B2 · Aug 2, 2016 · US
Regenerable filter unit, regenerable filter system including the same, and method of operating regenerable filter system
US-9359226-B2 · Jun 7, 2016 · US
Composite absorbent particles
US-2016150757-A1 · Jun 2, 2016 · US
Compositions and methods for selective anion removal
US-2016096747-A1 · Apr 7, 2016 · US
Mercury removal sorbents
US-9295984-B2 · Mar 29, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J20/12?
- CPC B01J20/12 is the Cooperative Patent Classification code for “Naturally occurring clays or bleaching earth.”
- How many patents are filed under CPC B01J20/12 (Naturally occurring clays or bleaching earth)?
- Our database includes 446 publications tagged with this CPC code.
- Is patent activity under CPC B01J20/12 growing?
- Publication counts under this code: 40 in 2024 vs 40 in 2025 (latest complete years).