Nonaqueous electrolyte battery electrode, nonaqueous electrolyte battery, and battery pack
US-10505177-B2 · Dec 10, 2019 · US
Acrylonitrile; Methacrylonitrile
Acrylonitrile; Methacrylonitrile · 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 | C07C255/08 |
| Official title | Acrylonitrile; Methacrylonitrile |
| Display label | Acrylonitrile; Methacrylonitrile |
| Total patents | 164 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 17 |
| 2017 | 7 |
| 2018 | 11 |
| 2019 | 25 |
| 2020 | 25 |
| 2021 | 20 |
| 2022 | 13 |
| 2023 | 22 |
| 2024 | 6 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Quench column aftercooler
US-2019299122-A1 · Oct 3, 2019 · US
Method for producing ammoxidation catalyst, and method for producing acrylonitrile
US-10427139-B2 · Oct 1, 2019 · US
Method for producing oxide catalyst, and method for producing unsaturated nitrile and unsaturated acid
US-2019262800-A1 · Aug 29, 2019 · US
Method for producing oxide catalyst and method for producing unsaturated nitrile
US-2019232270-A1 · Aug 1, 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
Integrated purification method and system for the industrial exhaust gas containing cyanides, hydrocarbons and NOx
US-10315160-B2 · Jun 11, 2019 · US
Method for producing catalyst and method for producing acrylonitrile
US-2019168191-A1 · Jun 6, 2019 · US
Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes
US-10308585-B2 · Jun 4, 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 ammoxidation catalyst, and method for producing acrylonitrile
US-2019091666-A1 · Mar 28, 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
Selective ammoxidation catalysts
US-2019001310-A1 · Jan 3, 2019 · US
Catalyst for fluidized bed ammoxidation reaction, and method for producing acrylonitrile
US-2018318803-A1 · Nov 8, 2018 · US
Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes
US-10112888-B2 · Oct 30, 2018 · US
Compositions and methods related to the production of acrylonitrile
US-2018229222-A1 · Aug 16, 2018 · US
Mixed metal oxide ammoxidation catalysts
US-2018133699-A1 · May 17, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C255/08?
- CPC C07C255/08 is the Cooperative Patent Classification code for “Acrylonitrile; Methacrylonitrile.”
- How many patents are filed under CPC C07C255/08 (Acrylonitrile; Methacrylonitrile)?
- Our database includes 164 publications tagged with this CPC code.
- Is patent activity under CPC C07C255/08 growing?
- Publication counts under this code: 6 in 2024 vs 7 in 2025 (latest complete years).