Method of purification and purified products
US-2024075407-A1 · Mar 7, 2024 · US
by solid-liquid treatment; by chemisorption
by solid-liquid treatment; by chemisorption · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C67/56 |
| Official title | by solid-liquid treatment; by chemisorption |
| Display label | by solid-liquid treatment; by chemisorption |
| Total patents | 180 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 14 |
| 2017 | 12 |
| 2018 | 21 |
| 2019 | 17 |
| 2020 | 23 |
| 2021 | 14 |
| 2022 | 9 |
| 2023 | 13 |
| 2024 | 18 |
| 2025 | 19 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for improved reactve monomer production with membrane filtration
US-2018361319-A1 · Dec 20, 2018 · US
Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same
US-2018305291-A1 · Oct 25, 2018 · US
Composition containing eicosapentaenoic acid alkyl ester, and method for producing same
US-10105340-B2 · Oct 23, 2018 · US
Method for manufacturing organic processing fluid for patterning of chemical amplification type resist film, organic processing fluid for patterning of chemical amplification type resist film, pattern forming method, method for manufacturing electronic device, and electronic device
US-10088752-B2 · Oct 2, 2018 · US
Method to obtain methylene malonate via bis(hydroxymethyl) malonate pathway
US-10086355-B2 · Oct 2, 2018 · US
High-purity carboxylic acid ester and method for producing same
US-2018273465-A1 · Sep 27, 2018 · US
Water elimination method
US-2018222842-A1 · Aug 9, 2018 · US
Chlorogenic acid-containing composition, method for manufacturing same, and drink or food item
US-10039303-B2 · Aug 7, 2018 · US
Method for the separation of the isoprenic constituents of guayule
US-2018171178-A1 · Jun 21, 2018 · US
Use of the Irritating Principal Oleocanthal in Olive Oil, as Well as Structurally and Functionally Similar Compounds
US-2018162800-A1 · Jun 14, 2018 · US
Composition containing eicosapentaenoic acid alkyl ester, and method for producing same
US-2018147176-A1 · May 31, 2018 · US
Method for purifying an ester compound
US-2018134652-A1 · May 17, 2018 · US
Process for the preparation and isolation of carboxylic esters
US-9963414-B2 · May 8, 2018 · US
(meth)acrylate manufacturing method
US-2018118658-A1 · May 3, 2018 · US
Concerted processes for forming 1,2,4-trihydroxybenzene from hydroquinone
US-2018105544-A1 · Apr 19, 2018 · US
Process for workup of a crude ester comprising esterification catalyst hydrolysis product in suspended particulate form
US-9932292-B2 · Apr 3, 2018 · US
Composition containing eicosapentaenoic acid alkyl ester, and method for producing same
US-9918953-B2 · Mar 20, 2018 · US
Process for operating a simulated moving bed reactor
US-9914072-B2 · Mar 13, 2018 · US
Method for producing composition containing purified chlorogenic acids
US-2017305833-A1 · Oct 26, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C67/56?
- CPC C07C67/56 is the Cooperative Patent Classification code for “by solid-liquid treatment; by chemisorption.”
- How many patents are filed under CPC C07C67/56 (by solid-liquid treatment; by chemisorption)?
- Our database includes 180 publications tagged with this CPC code.
- Is patent activity under CPC C07C67/56 growing?
- Publication counts under this code: 18 in 2024 vs 19 in 2025 (latest complete years).