Methods of Preparing a Catalyst
US-2020377630-A1 · Dec 3, 2020 · US
Oxides
Oxides · 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 | C08F4/24 |
| Official title | Oxides |
| Display label | Oxides |
| Total patents | 131 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 9 |
| 2017 | 5 |
| 2018 | 9 |
| 2019 | 25 |
| 2020 | 20 |
| 2021 | 11 |
| 2022 | 20 |
| 2023 | 11 |
| 2024 | 10 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Use of turbidimeter for measurement of solid catalyst system component in a reactor feed
US-10768106-B2 · Sep 8, 2020 · US
Methods of Preparing a Catalyst
US-2020239608-A1 · Jul 30, 2020 · US
Methods of preparing a catalyst
US-10654953-B2 · May 19, 2020 · US
Methods of Preparing a Catalyst Utilizing Hydrated Reagents
US-2020114343-A1 · Apr 16, 2020 · US
Rapid activation process and activation treatments for chromium catalysts for producing high melt index polyethylenes
US-2020095350-A1 · Mar 26, 2020 · US
Methods of preparing a catalyst
US-2020010587-A1 · Jan 9, 2020 · US
Methods of preparing a catalyst
US-10513570-B2 · Dec 24, 2019 · US
Polyolefin production with chromium-based catalysts
US-10465026-B2 · Nov 5, 2019 · US
Methods of Preparing a Catalyst Utilizing Hydrated Reagents
US-2019314797-A1 · Oct 17, 2019 · US
Polymerization process
US-10377841-B2 · Aug 13, 2019 · US
Continuous gas-phase polymerization processes
US-10358509-B2 · Jul 23, 2019 · US
Polymerization Process
US-2019218318-A1 · Jul 18, 2019 · US
Polymerization Process
US-2019218319-A1 · Jul 18, 2019 · US
Aqueous Methods for Titanating A Chromium/Silica Catalyst
US-2019201872-A1 · Jul 4, 2019 · US
Process for the Preparation of Ethylene Polymers Using a Number of Reactors Arranged in Series
US-2019194371-A1 · Jun 27, 2019 · US
Methods for controlling polymer properties
US-2019161568-A1 · May 30, 2019 · US
Aqueous methods for titanating a chromium/silica catalyst
US-10300460-B1 · May 28, 2019 · US
Ethylene-based polymer, manufacturing method of ethylene-based polymer and manufacturing method of catalyst for polymerization, and molded article of hollow plastics containing ethylene-based polymer and use thereof
US-10301409-B2 · May 28, 2019 · US
Methods of preparing a catalyst
US-2019153133-A1 · May 23, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F4/24?
- CPC C08F4/24 is the Cooperative Patent Classification code for “Oxides.”
- How many patents are filed under CPC C08F4/24 (Oxides)?
- Our database includes 131 publications tagged with this CPC code.
- Is patent activity under CPC C08F4/24 growing?
- Publication counts under this code: 10 in 2024 vs 5 in 2025 (latest complete years).