Process for producing acrolein, acrylic acid and derivatives thereof
US-9422377-B2 · Aug 23, 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 | C07C57/04 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 565 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 56 |
| 2016 | 68 |
| 2017 | 68 |
| 2018 | 75 |
| 2019 | 66 |
| 2020 | 60 |
| 2021 | 35 |
| 2022 | 26 |
| 2023 | 33 |
| 2024 | 35 |
| 2025 | 30 |
| 2026 | 13 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production of methacrylic acid
US-9394222-B2 · Jul 19, 2016 · US
Process for manufacturing acrolein/acrylic acid
US-9296676-B2 · Mar 29, 2016 · US
Method for purifying methacrylic acid
US-9238610-B2 · Jan 19, 2016 · US
Method and system for purifying monomers
US-9221738-B2 · Dec 29, 2015 · US
RING-SHAPED CATALYST FOR PREPARING ACROLEIN AND ACRYLIC ACID, AND USE THEREOF (As Amended)
US-2015367329-A1 · Dec 24, 2015 · US
Process for charging a longitudinal section of a catalyst tube
US-9216395-B2 · Dec 22, 2015 · US
Process for inhibiting unwanted free-radical polymerization of acrylic acid present in a liquid phase P
US-9212122-B2 · Dec 15, 2015 · US
Catalyst for producing unsaturated aldehyde and/or unsaturated carboxylic acid, and process for producing unsaturated aldehyde and/or unsaturated carboxylic acid using the catalyst
US-9205414-B2 · Dec 8, 2015 · US
Method for producing bioresourced propionic acid from glycerol
US-9206110-B2 · Dec 8, 2015 · US
Use of a feed compositions in preparation of methacrylic acid by oxidation
US-9206108-B2 · Dec 8, 2015 · US
Method of stabilizing polymerizable compounds
US-9206109-B2 · Dec 8, 2015 · US
Aqueous solution comprising acrylic acid and the conjugate base thereof
US-2015344621-A1 · Dec 3, 2015 · US
Processes for producing acrylic acids and acrylates
US-9193661-B2 · Nov 24, 2015 · US
Purification Of Bio Based Acrylic Acid To Crude And Glacial Acrylic Acid
US-2015329462-A1 · Nov 19, 2015 · US
Silica-based material and process for producing the same, noble metal supported material and process for producing carboxylic acids by using the same as catalyst
US-2015321178-A1 · Nov 12, 2015 · US
Method for preparing unsaturated carboxylic acid
US-9181170-B2 · Nov 10, 2015 · US
Process for heterogeneously catalyzed gas phase partial oxidation of (meth)acrolein to (meth)acrylic acid
US-9181169-B2 · Nov 10, 2015 · US
Method for producing acrylic acid with a fixed-bed multitubular reactor
US-9174910-B2 · Nov 3, 2015 · US
Process for preparing an unsaturated aldehyde and/or an unsaturated carboxylic acid
US-9169188-B2 · Oct 27, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C57/04?
- CPC C07C57/04 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C07C57/04 (Chemistry & Metallurgy)?
- Our database includes 565 publications tagged with this CPC code.
- Is patent activity under CPC C07C57/04 growing?
- Publication counts under this code: 35 in 2024 vs 30 in 2025 (latest complete years).