Physico-chemical process for removal of nitrogen species from recirculated aquaculture systems
US-2019380313-A1 · Dec 19, 2019 · US
Macromolecular compounds (B01J39/17 takes precedence)
Macromolecular compounds (B01J39/17 takes precedence) · 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 | B01J39/18 |
| Official title | Macromolecular compounds (B01J39/17 takes precedence) |
| Display label | Macromolecular compounds (B01J39/17 takes precedence) |
| Total patents | 114 |
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 | 9 |
| 2016 | 5 |
| 2017 | 11 |
| 2018 | 15 |
| 2019 | 22 |
| 2020 | 12 |
| 2021 | 16 |
| 2022 | 4 |
| 2023 | 12 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Platinum oxide colloidal solution, manufacturing method therefor, manufacture apparatus thereof, and method of injection noble metal of boiling water nuclear power plant
US-10504628-B2 · Dec 10, 2019 · US
Method of cleaning resins
US-2019366322-A1 · Dec 5, 2019 · US
Separating agent for human insulin purification and human insulin purification method
US-2019359649-A1 · Nov 28, 2019 · US
Multimodal chromatographic media for protein separation
US-2019358621-A1 · Nov 28, 2019 · US
Methods, compositions and kits useful for ph gradient cation exchange chromatography
US-2019344256-A1 · Nov 14, 2019 · US
Method for purifying organic solvent
US-2019300464-A1 · Oct 3, 2019 · US
Electro-ceramic coating bath cleanup by a hybrid ion exchange precipitation process
US-2019292680-A1 · Sep 26, 2019 · US
Ion exchange membrane and filter module using same
US-2019282966-A1 · Sep 19, 2019 · US
Ion exchange membrane, ion exchange membrane laminated body provided with ion exchange membrane, electrochemical cell provided with ion exchange membrane laminated body, and water treatment apparatus provided with electrochemical cell
US-10392273-B2 · Aug 27, 2019 · US
Methods of purifying proteins
US-2019218248-A1 · Jul 18, 2019 · US
Phosphonium-crosslinked chitosan and methods for using and producing the same
US-2019185588-A1 · Jun 20, 2019 · US
Ion exchange resin transportation and storage
US-2019176143-A1 · Jun 13, 2019 · US
Bipolar ion exchange sheet and manufacturing method therefor
US-10300478-B2 · May 28, 2019 · US
Ion exchange membrane
US-10252257-B2 · Apr 9, 2019 · US
Composite Extractant-Enhanced Polymer Resin, Method of Making the Same, and Its Usage for Extraction of Valuable Metal(s)
US-2019054457-A1 · Feb 21, 2019 · US
Method for producing purified aqueous solution of silicic acid
US-2019055131-A1 · Feb 21, 2019 · US
Purification process for hydrophilic organic solvent
US-2019009266-A1 · Jan 10, 2019 · US
Polymeric ion traps for suppressing or minimizing transition metal ions and dendrite formation or growth in lithium-ion batteries
US-2019013551-A1 · Jan 10, 2019 · US
Purification process for hydrolysable organic solvent
US-2019009267-A1 · Jan 10, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J39/18?
- CPC B01J39/18 is the Cooperative Patent Classification code for “Macromolecular compounds (B01J39/17 takes precedence).”
- How many patents are filed under CPC B01J39/18 (Macromolecular compounds (B01J39/17 takes precedence))?
- Our database includes 114 publications tagged with this CPC code.
- Is patent activity under CPC B01J39/18 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).