Information processing device, and method of ventilating information processing device
US-2020367819-A1 · Nov 26, 2020 · US
Diatomaceous earth
Diatomaceous 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 | B01J20/14 |
| Official title | Diatomaceous earth |
| Display label | Diatomaceous earth |
| Total patents | 136 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 23 |
| 2021 | 8 |
| 2022 | 15 |
| 2023 | 11 |
| 2024 | 11 |
| 2025 | 18 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Producing C5 olefins from steam cracker C5 feeds—a process using a catalytic distillation reactor system
US-10814302-B2 · Oct 27, 2020 · US
Perfluoroalkyl and polyfluoroalkyl sorbent materials and methods of use
US-2020316560-A1 · Oct 8, 2020 · US
High absorption minerals
US-2020283301-A1 · Sep 10, 2020 · US
Filter aids
US-2020222837-A1 · Jul 16, 2020 · US
Method and system for treating aqueous fluid resulting from fluoropolymer production step
US-2020171417-A1 · Jun 4, 2020 · US
Production system for composite porous solid articles
US-10625213-B2 · Apr 21, 2020 · US
High-purity composite materials, methods of making high-purity composite materials, and methods of using high-purity composite materials
US-2020060316-A1 · Feb 27, 2020 · US
Co-agglomerated composite materials
US-10556221-B2 · Feb 11, 2020 · US
Compositions and methods for calcining diatomaceous earth with reduced cristobalite and/or reduced beer soluble iron
US-10532339-B2 · Jan 14, 2020 · US
Particulate water absorbing agent and water absorbent article
US-10525445-B2 · Jan 7, 2020 · US
Method of scavenging hydrogen sulfide and mercaptans using well treatment composites
US-10434467-B2 · Oct 8, 2019 · US
Spiral gas adsorption apparatus and method of using the same
US-2019275459-A1 · Sep 12, 2019 · US
Photocatalytic filter, purification device, and purification method
US-10407319-B2 · Sep 10, 2019 · US
Composite filter aids and methods of using composite filter aids
US-2019270067-A1 · Sep 5, 2019 · US
Producing c5 olefins from steam cracker c5 feeds
US-2019232249-A1 · Aug 1, 2019 · US
Carbon sorbents for the removal of nitrogen oxides and methods for making the same
US-2019210001-A1 · Jul 11, 2019 · US
Methods of making highly purified diatomaceous earth with wide range of filtration rates
US-2019176123-A1 · Jun 13, 2019 · US
Carbon sorbents for the removal of nitrogen oxides and methods for making the same
US-10279333-B2 · May 7, 2019 · US
Method of separating rhamnolipids from a fermentation broth
US-10259837-B2 · Apr 16, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J20/14?
- CPC B01J20/14 is the Cooperative Patent Classification code for “Diatomaceous earth.”
- How many patents are filed under CPC B01J20/14 (Diatomaceous earth)?
- Our database includes 136 publications tagged with this CPC code.
- Is patent activity under CPC B01J20/14 growing?
- Publication counts under this code: 11 in 2024 vs 18 in 2025 (latest complete years).