Measurement of chloride content in catalysts
US-11499930-B2 · Nov 15, 2022 · US
oxygen-containing
oxygen-containing · 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 | B01J38/52 |
| Official title | oxygen-containing |
| Display label | oxygen-containing |
| Total patents | 76 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 11 |
| 2019 | 11 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 12 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Non-destructive process for removing metals, metal ions and metal oxides from alumina-based materials
US-11498847-B2 · Nov 15, 2022 · US
Method of maintaining the activity of pre-reform catalysts
US-2022339617-A1 · Oct 27, 2022 · US
Neutral complex cleaning solution and regeneration method for denitration catalyst with calcium poisoning
US-11439997-B2 · Sep 13, 2022 · US
Metallosilicate catalyst solvent wash
US-2022258142-A1 · Aug 18, 2022 · US
Process for regeneration of hydrogenation catalysts
US-2022193652-A1 · Jun 23, 2022 · US
Catalyst for use in hydrotreatment, comprising metals from groups VIII and VIB, and preparation with citric acid and C1-C4 dialkyl succinate
US-11351529-B2 · Jun 7, 2022 · US
Method for regenerating hydrogenation catalyst
US-2022072518-A1 · Mar 10, 2022 · US
Method for regenerating a catalyst which is spent and regenerated by a hydrodesulfurization process of gasolines
US-2022040680-A1 · Feb 10, 2022 · US
Method for regenerating waste organic zinc catalyst through surface modification
US-2022023850-A1 · Jan 27, 2022 · US
Recovering deactivated metal/zeolite catalysts
US-11220944-B2 · Jan 11, 2022 · US
Process for the preparation of a catalyst which can be used in hydrotreatment and hydroconversion
US-11179713-B2 · Nov 23, 2021 · US
Catalyst made from an organic compound and use thereof in a hydroprocessing and/or hydrocracking method
US-11097258-B2 · Aug 24, 2021 · US
Measurement of chloride content in catalysts
US-2021025842-A1 · Jan 28, 2021 · US
Homogeneous catalysts that are recoverable by host-guest interactions
US-10828628-B2 · Nov 10, 2020 · US
Catalyst containing 2-acetylbutyrolactone and/or the hydrolysis products thereof, and use thereof in a hydrotreatment and/or hydrocracking process
US-10828627-B2 · Nov 10, 2020 · US
Methods to rejuvenate a deactivated hydroformylation catalyst solution
US-10792652-B2 · Oct 6, 2020 · US
Method for regenerating catalyst and method for producing carbonate ester
US-2020282389-A1 · Sep 10, 2020 · US
Water soluble homogeneous catalysts that are recoverable by phase selectivity and host-guest interactions
US-10737255-B2 · Aug 11, 2020 · US
Non-destructive process for removing metals, metal ions and metal oxides from alumina-based materials
US-2020207635-A1 · Jul 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J38/52?
- CPC B01J38/52 is the Cooperative Patent Classification code for “oxygen-containing.”
- How many patents are filed under CPC B01J38/52 (oxygen-containing)?
- Our database includes 76 publications tagged with this CPC code.
- Is patent activity under CPC B01J38/52 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).