Method for producing acrylic acid
US-2022402849-A1 · Dec 22, 2022 · US
containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J23/887 |
| Official title | containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 |
| Display label | containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 |
| Total patents | 88 |
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 | 8 |
| 2016 | 7 |
| 2017 | 5 |
| 2018 | 9 |
| 2019 | 12 |
| 2020 | 5 |
| 2021 | 8 |
| 2022 | 13 |
| 2023 | 6 |
| 2024 | 11 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing ammoxidation catalyst and method for producing acrylonitrtie
US-11433383-B2 · Sep 6, 2022 · US
Catalyst, method for producing catalyst, and method for producing acrylonitrile
US-2022168711-A1 · Jun 2, 2022 · US
Method for producing unsaturated aldehyde
US-2022169587-A1 · Jun 2, 2022 · US
Nozzle, solid matter unloading device, solid matter unloading system, and solid matter unloading method
US-2022088554-A1 · Mar 24, 2022 · US
Butadiene production method
US-2022081374-A1 · Mar 17, 2022 · US
Granule loading method
US-2021362112-A1 · Nov 25, 2021 · US
Catalyst, method for producing catalyst, and method for producing acrylonitrile
US-2021322959-A1 · Oct 21, 2021 · US
Method for producing catalyst for ammoxidation, and method for producing acrylonitrile
US-2021316292-A1 · Oct 14, 2021 · US
Catalyst for oxidative dehydrogenation of butene and method for producing the same
US-2021197179-A1 · Jul 1, 2021 · US
Highly active quaternary metallic materials using short-chain alkyl quaternary ammonium compounds
US-11034591-B2 · Jun 15, 2021 · US
Method for producing at least one of unsaturated aldehyde and unsaturated carboxylic acid and catalyst for producing at least one of unsaturated aldehyde and unsaturated carboxylic acid
US-2021155569-A1 · May 27, 2021 · US
Method for producing catalyst and method for producing unsaturated nitrile
US-2021146343-A1 · May 20, 2021 · US
Method for producing acrylonitrile
US-2021070693-A1 · Mar 11, 2021 · US
Restarting method
US-10851040-B2 · Dec 1, 2020 · US
Selective ammoxidation catalysts
US-10780427-B2 · Sep 22, 2020 · US
Catalyst for ammoxidation, method for producing the same and method for producing acrylonitrile
US-2020061590-A1 · Feb 27, 2020 · US
Restarting method
US-2020048175-A1 · Feb 13, 2020 · US
Catalytic oxidation method and method for producing conjugated diene
US-2020001262-A1 · Jan 2, 2020 · US
Method for regenerating catalyst for butadiene production
US-2019299195-A1 · Oct 3, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J23/887?
- CPC B01J23/887 is the Cooperative Patent Classification code for “containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36.”
- How many patents are filed under CPC B01J23/887 (containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36)?
- Our database includes 88 publications tagged with this CPC code.
- Is patent activity under CPC B01J23/887 growing?
- Publication counts under this code: 11 in 2024 vs 2 in 2025 (latest complete years).