Carboxyl-group-containing copolymer, and method for producing same
US-2020291153-A1 · Sep 17, 2020 · US
by chemical means
by chemical means · 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 | C23F14/02 |
| Official title | by chemical means |
| Display label | by chemical means |
| Total patents | 104 |
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 | 13 |
| 2016 | 11 |
| 2017 | 9 |
| 2018 | 13 |
| 2019 | 9 |
| 2020 | 12 |
| 2021 | 13 |
| 2022 | 5 |
| 2023 | 11 |
| 2024 | 6 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Scale remover in steam generating facility
US-10703659-B2 · Jul 7, 2020 · US
Method of suspending elemental sulfur in water
US-2020095148-A1 · Mar 26, 2020 · US
Cleaning agent for removal of fouling deposits from metal surfaces
US-2020095522-A1 · Mar 26, 2020 · US
Scale control in phosphoric acid production and handling plants
US-10584049-B2 · Mar 10, 2020 · US
Method for controlling scale formation
US-10457849-B2 · Oct 29, 2019 · US
Method for removing scale and scale remover in steam generating facility
US-10384966-B2 · Aug 20, 2019 · US
Novel Modified Acid Compositions as Alternatives to Conventional Acids in the Oil and Gas Industry
US-2019194528-A1 · Jun 27, 2019 · US
Method to inhibit polymerization in a process water
US-2019185761-A1 · Jun 20, 2019 · US
Hydrophosphorylated polycarboxylic acids and their synergistic combinations as corrosion and scale inhibitors
US-2019177616-A1 · Jun 13, 2019 · US
Aqueous oil-in-water emulsions of organic amines
US-2019169501-A1 · Jun 6, 2019 · US
Targeted heat exchanger deposit removal by combined dissolution and mechanical removal
US-10309032-B2 · Jun 4, 2019 · US
Primary amine-containing polymers useful as scale inhibitors
US-10214421-B2 · Feb 26, 2019 · US
Degradation-resistant scale inhibitors
US-10190003-B2 · Jan 29, 2019 · US
Scale control in phosphoric acid production and handling plants
US-2018305234-A1 · Oct 25, 2018 · US
Formulation and method for dissolution of metal sulfides, inihibition of acid gas corrosion, and inhibition of scale formation
US-2018282606-A1 · Oct 4, 2018 · US
Corrosion Inhibitors for Passivation of Galvanized Coatings and Carbon Steel
US-2018274105-A1 · Sep 27, 2018 · US
Method of reducing scale in the bayer process
US-10066124-B2 · Sep 4, 2018 · US
Antiscale dispersant composition and use thereof
US-2018244553-A1 · Aug 30, 2018 · US
Scale remover in steam generating facility
US-2018215637-A1 · Aug 2, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23F14/02?
- CPC C23F14/02 is the Cooperative Patent Classification code for “by chemical means.”
- How many patents are filed under CPC C23F14/02 (by chemical means)?
- Our database includes 104 publications tagged with this CPC code.
- Is patent activity under CPC C23F14/02 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).