Gas-phase catalytic fluorination with chromium catalysts
US-2018370878-A1 · Dec 27, 2018 · US
Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst · 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 | B01J38/04 |
| Official title | Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst |
| Display label | Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst |
| Total patents | 177 |
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 | 18 |
| 2017 | 13 |
| 2018 | 18 |
| 2019 | 25 |
| 2020 | 17 |
| 2021 | 21 |
| 2022 | 13 |
| 2023 | 13 |
| 2024 | 13 |
| 2025 | 10 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of Regenerating Aromatization Catalysts with a Decoking Step Between Chlorine and Fluorine Addition
US-2018333713-A1 · Nov 22, 2018 · US
Methods of Regenerating Aromatization Catalysts with A Decoking Step Between Chlorine and Fluorine Addition
US-2018333705-A1 · Nov 22, 2018 · US
Fcc counter-current regenerator
US-2018318821-A1 · Nov 8, 2018 · US
Concurrent reduction for improving the performance of the dehydrogenation of alkanes
US-10093595-B2 · Oct 9, 2018 · US
Apparatus and method for desulfation of a catalyst used in a lean burn methane source fueled combustion system
US-2018238216-A1 · Aug 23, 2018 · US
Process for Making Cyclohexanone
US-2018194705-A1 · Jul 12, 2018 · US
Methods and materials for improved catalytic oligomerization
US-2018169627-A1 · Jun 21, 2018 · US
Apparatus and process for contacting catalyst with a gas and reduction
US-2018117580-A1 · May 3, 2018 · US
Methods of Treatment and Use of Spent Equilibrium Catalyst
US-2018071726-A1 · Mar 15, 2018 · US
Enhanced extraction of impurities from mixture comprising nitriles
US-9914700-B2 · Mar 13, 2018 · US
Methods for catalyst stripping
US-2018050334-A1 · Feb 22, 2018 · US
Method for removing catalyst used in reaction
US-9896401-B2 · Feb 20, 2018 · US
Exhaust purification system and catalyst regeneration method
US-2018017000-A1 · Jan 18, 2018 · US
Compound bed design with additional regeneration steps for removal of various sulfur species from lighter hydrocarbon streams containing trace levels of olefins
US-2018016210-A1 · Jan 18, 2018 · US
Method of improving metal-impregnated catalyst performance
US-9868117-B2 · Jan 16, 2018 · US
EXHAUST GAS PURIFICATION SYSTEM, AND NOx PURIFICATION CAPACITY RESTORATION METHOD
US-2017362980-A1 · Dec 21, 2017 · US
Method for removing catalyst used in reaction
US-2017349511-A1 · Dec 7, 2017 · US
Supported metal oxides for olefin metathesis and related methods
US-9815753-B2 · Nov 14, 2017 · US
Embedded alkane dehydrogenation systems and processes
US-2017297979-A1 · Oct 19, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J38/04?
- CPC B01J38/04 is the Cooperative Patent Classification code for “Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst.”
- How many patents are filed under CPC B01J38/04 (Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst)?
- Our database includes 177 publications tagged with this CPC code.
- Is patent activity under CPC B01J38/04 growing?
- Publication counts under this code: 13 in 2024 vs 10 in 2025 (latest complete years).