(meth)acrylic acid production method, and, hydrophilic resin production method
US-9522867-B2 · Dec 20, 2016 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C08F20/06 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 675 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 35 |
| 2016 | 50 |
| 2017 | 46 |
| 2018 | 56 |
| 2019 | 63 |
| 2020 | 93 |
| 2021 | 65 |
| 2022 | 79 |
| 2023 | 60 |
| 2024 | 61 |
| 2025 | 47 |
| 2026 | 20 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dispersible nonwoven
US-9512546-B2 · Dec 6, 2016 · US
Method for preparing superabsorbent polymer
US-2016332143-A1 · Nov 17, 2016 · US
Continuous process for the manufacture of highly-branched polymers
US-9481742-B2 · Nov 1, 2016 · US
Acrylic Polymer Formulations
US-2016310433-A1 · Oct 27, 2016 · US
Method for Producing a Holographic Optical Element
US-2016313696-A1 · Oct 27, 2016 · US
Method for solution-polymerising (meth)acrylic acid
US-2016280817-A1 · Sep 29, 2016 · US
Polyethylene glycol based oligomers for coating nanoparticles, nanoparticles coated therewith, and related methods
US-9446153-B2 · Sep 20, 2016 · US
Process for producing acrolein, acrylic acid and derivatives thereof
US-9422377-B2 · Aug 23, 2016 · US
Method for loading loose iron ore partially treated by means of superabsorbents
US-9422122-B2 · Aug 23, 2016 · US
Molasses binder
US-9416248-B2 · Aug 16, 2016 · US
Low-concentration, inverse emulsion obtained by polymerization of weakly neutralized polymers
US-2016152749-A1 · Jun 2, 2016 · US
Poly(acrylic acid)-glycerol blends
US-9346938-B1 · May 24, 2016 · US
Polyethylene glycol based oligomers for coating nanoparticles, nanoparticles coated therewith, and related methods
US-2016136302-A1 · May 19, 2016 · US
Method of manufacturing electrophoretic particle, electrophoretic particle, electrophoretic dispersion, electrophoretic sheet, electrophoretic device, and electronic apparatus
US-2016131925-A1 · May 12, 2016 · US
Electrically conductive polymer resin and method for making same
US-9336923-B2 · May 10, 2016 · US
Method for producing water absorbent resin
US-9321855-B2 · Apr 26, 2016 · US
Aqueous poly(meth)acrylic acid (salt) solution and process for preparing same
US-9315645-B2 · Apr 19, 2016 · US
Method for producing water-absorbent resin
US-9273156-B2 · Mar 1, 2016 · US
Polyethylene glycol based oligomers for coating nanoparticles, nanoparticles coated therewith, and related methods
US-2016055946-A1 · Feb 25, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F20/06?
- CPC C08F20/06 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C08F20/06 (Chemistry & Metallurgy)?
- Our database includes 675 publications tagged with this CPC code.
- Is patent activity under CPC C08F20/06 growing?
- Publication counts under this code: 61 in 2024 vs 47 in 2025 (latest complete years).