Synthesis of methacrylic acid from methacrolein-based alkyl methacrylate
US-10479754-B2 · Nov 19, 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 | C07C45/75 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 113 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 13 |
| 2017 | 17 |
| 2018 | 12 |
| 2019 | 11 |
| 2020 | 15 |
| 2021 | 5 |
| 2022 | 10 |
| 2023 | 6 |
| 2024 | 10 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing methylmethacrylate
US-10457626-B2 · Oct 29, 2019 · US
Polymers including a methylene beta-ketoester and products formed therefrom
US-2019315892-A1 · Oct 17, 2019 · US
Polymers including a methylene beta-ketoester and products formed therefrom
US-10414839-B2 · Sep 17, 2019 · US
Method for producing hydroxypivalaldehyde
US-10392335-B2 · Aug 27, 2019 · US
1-hydroxymethyl-1,2,2,6-tetramethyl-cyclohexane and derivatives thereof and their use as aroma chemicals
US-2019169108-A1 · Jun 6, 2019 · US
Method for producing methylmethacrylate
US-10273201-B2 · Apr 30, 2019 · US
Method for producing methylmethacrylate
US-2019112255-A1 · Apr 18, 2019 · US
Method for the preparation of alkylsalicylaldehyde and alkylsalicylaldoxime, and use thereof
US-10259767-B2 · Apr 16, 2019 · US
Multifunctional monomers, methods for making multifunctional monomers, polymerizable compositions and products formed thereform
US-2018346615-A1 · Dec 6, 2018 · US
Multifunctional monomers, methods for making multifunctional monomers, polymerizable compositions and products formed thereform
US-2018327525-A1 · Nov 15, 2018 · US
Optimized process for preparing methacrylic acid
US-10125077-B2 · Nov 13, 2018 · US
Process for preparing synthesis intermediates using products of natural origin and use of the intermediates obtained
US-10099987-B2 · Oct 16, 2018 · US
Apparatus for preparing glycol and method of preparing the same
US-10093603-B2 · Oct 9, 2018 · US
Synthesis of methacrylic acid from methacrolein-based alkyl methacrylate
US-2018251418-A1 · Sep 6, 2018 · US
Method for the preparation of alkylsalicylaldehyde and alkylsalicylaldoxime, and use thereof
US-2018186714-A1 · Jul 5, 2018 · US
Optimized method for producing methacrolein
US-9994507-B2 · Jun 12, 2018 · US
Multifunctional monomers, methods for making multifunctional monomers, polymerizable compositions and products formed therefrom
US-9969822-B2 · May 15, 2018 · US
Process for producing methyl methacrylate
US-9963417-B2 · May 8, 2018 · US
Method for producing methylmethacrylate
US-2018050977-A1 · Feb 22, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C45/75?
- CPC C07C45/75 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C07C45/75 (Chemistry & Metallurgy)?
- Our database includes 113 publications tagged with this CPC code.
- Is patent activity under CPC C07C45/75 growing?
- Publication counts under this code: 10 in 2024 vs 4 in 2025 (latest complete years).