Fluid distributor, reaction device and application thereof
US-2020368707-A1 · Nov 26, 2020 · US
containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes
containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes · 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 | C07C253/26 |
| Official title | containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes |
| Display label | containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes |
| Total patents | 126 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 15 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 19 |
| 2020 | 14 |
| 2021 | 14 |
| 2022 | 14 |
| 2023 | 9 |
| 2024 | 7 |
| 2025 | 9 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing oxide catalyst and method for producing unsaturated nitrile
US-10792643-B2 · Oct 6, 2020 · US
Processes for stabilizing antimony catalysts
US-2020269218-A1 · Aug 27, 2020 · US
Compositions and methods related to the production of acrylonitrile
US-10486142-B2 · Nov 26, 2019 · US
Method for producing ammoxidation catalyst, and method for producing acrylonitrile
US-10427139-B2 · Oct 1, 2019 · US
Off-gas incinerator control
US-2019282991-A1 · Sep 19, 2019 · US
Prevention of tissue ischemia and related methods
US-10370439-B2 · Aug 6, 2019 · US
Method for producing oxide catalyst and method for producing unsaturated nitrile
US-2019232270-A1 · Aug 1, 2019 · US
Process for producing unsaturated nitrile
US-2019225576-A1 · Jul 25, 2019 · US
Composite oxide catalyst, method for producing the same, and method for producing unsaturated nitrile
US-10343146-B2 · Jul 9, 2019 · US
Method for producing catalyst and method for producing acrylonitrile
US-10328418-B1 · Jun 25, 2019 · US
Method for producing catalyst and method for producing acrylonitrile
US-2019168191-A1 · Jun 6, 2019 · US
Ammoxidation reactor control
US-2019152898-A1 · May 23, 2019 · US
Purifying method, production method, and distillation apparatus for acrylonitrile
US-10294197-B2 · May 21, 2019 · US
Method for producing oxide catalyst and method for producing unsaturated nitrile
US-2019143304-A1 · May 16, 2019 · US
Method for producing ammoxidation catalyst and method for producing acrylonitrile
US-2019126262-A1 · May 2, 2019 · US
Method for producing ammoxidation catalyst, and method for producing acrylonitrile
US-2019091666-A1 · Mar 28, 2019 · US
Method for the hydrothermal preparation of molybdenum-bismuth-cobalt-iron-based mixed oxide catalysts
US-2019076829-A1 · Mar 14, 2019 · US
Purifying method, production method, and distillation apparatus for acrylonitrile
US-2019047945-A1 · Feb 14, 2019 · US
Acrylonitrile Derivatives from Epoxide and Carbon Monoxide Reagents
US-2019002400-A1 · Jan 3, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C253/26?
- CPC C07C253/26 is the Cooperative Patent Classification code for “containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes.”
- How many patents are filed under CPC C07C253/26 (containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes)?
- Our database includes 126 publications tagged with this CPC code.
- Is patent activity under CPC C07C253/26 growing?
- Publication counts under this code: 7 in 2024 vs 9 in 2025 (latest complete years).