Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes
US-10308585-B2 · Jun 4, 2019 · 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 | C07C233/09 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 128 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 18 |
| 2017 | 11 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 10 |
| 2021 | 12 |
| 2022 | 7 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 8 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydrolysis vessel used in a process for amidification of acetone cyanohydrin
US-10273199-B2 · Apr 30, 2019 · US
Process for preparing N-alkyl(meth)acrylamides
US-10138202-B2 · Nov 27, 2018 · US
Dental cement composition
US-10117810-B2 · Nov 6, 2018 · US
Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes
US-10112888-B2 · Oct 30, 2018 · US
Method for forming three-dimensional object
US-2018281293-A1 · Oct 4, 2018 · US
Substituted malonamides and their use as antibacterial drugs
US-2018237379-A1 · Aug 23, 2018 · US
Ophthalmic lens material and ophthalmic lens of such material
US-2018210114-A1 · Jul 26, 2018 · US
Synthesis of an antiviral compound
US-10030033-B2 · Jul 24, 2018 · US
Vicinal primary diamines associated with metal and/or free radical chelation motifs, and active against carbonyl and oxidative stress, and use thereof
US-2018201602-A1 · Jul 19, 2018 · US
Polymerizable polar compound, liquid crystal composition and liquid crystal display device
US-2018195005-A1 · Jul 12, 2018 · US
Thermal conversion vessel used in a process for amidification of acetone cyanohydrin
US-2018079713-A1 · Mar 22, 2018 · US
Dental cement composition
US-2018071175-A1 · Mar 15, 2018 · US
Thermal conversion vessel used in a process for amidification of acetone cyanohydrin
US-9840458-B2 · Dec 12, 2017 · US
Anionic-cationic-nonionic surfactant,production and use thereof
US-2017313928-A1 · Nov 2, 2017 · US
Surfactant-containing amide compound solution
US-2017291870-A1 · Oct 12, 2017 · US
Method for preparing an aqueous acrylamide solution having a low acrylic acid concentration
US-2017283840-A1 · Oct 5, 2017 · US
Synthesis of an antiviral compound
US-2017210756-A1 · Jul 27, 2017 · US
Geranyl geranyl acetone analogs and uses thereof
US-9688651-B2 · Jun 27, 2017 · US
Fatty amides and derivatives from natural oil metathesis
US-2017158617-A1 · Jun 8, 2017 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C233/09?
- CPC C07C233/09 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C07C233/09 (Chemistry & Metallurgy)?
- Our database includes 128 publications tagged with this CPC code.
- Is patent activity under CPC C07C233/09 growing?
- Publication counts under this code: 9 in 2024 vs 8 in 2025 (latest complete years).