Method of Recovering Paraxylene in a Crystallization Zone
US-2020369582-A1 · Nov 26, 2020 · US
by crystallisation; Purification or separation of the crystals
by crystallisation; Purification or separation of the crystals · 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 | C07C7/14 |
| Official title | by crystallisation; Purification or separation of the crystals |
| Display label | by crystallisation; Purification or separation of the crystals |
| Total patents | 103 |
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 | 10 |
| 2016 | 16 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 11 |
| 2020 | 18 |
| 2021 | 14 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for Preparing Paraffin
US-2020369579-A1 · Nov 26, 2020 · US
Methods and systems for producing para-xylene from C8-containing compositions
US-10843983-B2 · Nov 24, 2020 · US
Methods and systems for producing para-xylene from c8-containing compositions
US-2020354289-A1 · Nov 12, 2020 · US
Oxidation of Methyl-substituted Biphenyl Compounds
US-2020325096-A1 · Oct 15, 2020 · US
Process for making xylenes and phenol from coal derived liquids
US-10723675-B2 · Jul 28, 2020 · US
Hybrid process for producing high-purity para-xylene with toluene solvent
US-2020223770-A1 · Jul 16, 2020 · US
Production and separation of dimethyl biphenyl isomers
US-10676412-B2 · Jun 9, 2020 · US
Systems and methods of debottlenecking propane feed
US-2020103165-A1 · Apr 2, 2020 · US
Dynamic melt crystallization process for purifying dicyclopentadiene from a mixed liquid hydrocarbon stream
US-10561962-B2 · Feb 18, 2020 · US
Systems and Methods for Deep Crystallization of Xylene Streams
US-2020048169-A1 · Feb 13, 2020 · US
Process for making xylenes and phenol from coal derived liquids
US-2020031741-A1 · Jan 30, 2020 · US
Integrated processes for para-xylene production
US-2020024216-A1 · Jan 23, 2020 · US
Reverse osmosis membranes and separations
US-10486107-B2 · Nov 26, 2019 · US
Process for preparing cyclododecanone
US-2019345101-A1 · Nov 14, 2019 · US
Hydrocarbon reverse osmosis membranes and separations
US-10456747-B2 · Oct 29, 2019 · US
A method and an apparatus for recovering chemicals from an alkaline lignin material
US-2019309002-A1 · Oct 10, 2019 · US
Production and separation of dimethyl biphenyl isomers
US-2019300456-A1 · Oct 3, 2019 · US
Process for recovering paraxylene from at least two feedstreams containing xylene isomers
US-10351491-B2 · Jul 16, 2019 · US
Process for the recovering of paraxylene
US-10300404-B2 · May 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C7/14?
- CPC C07C7/14 is the Cooperative Patent Classification code for “by crystallisation; Purification or separation of the crystals.”
- How many patents are filed under CPC C07C7/14 (by crystallisation; Purification or separation of the crystals)?
- Our database includes 103 publications tagged with this CPC code.
- Is patent activity under CPC C07C7/14 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).