Enhanced Machine Learning for Iron-Based Oligomerization of Ethylene K-Value Prediction
US-2025349393-A1 · Nov 13, 2025 · US
of the platinum group metals, iron group metals or copper
of the platinum group metals, iron group metals or copper · 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 | C07C2531/28 |
| Official title | of the platinum group metals, iron group metals or copper |
| Display label | of the platinum group metals, iron group metals or copper |
| Total patents | 66 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 8 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 8 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 5 |
| 2024 | 1 |
| 2025 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
5G avoidance during LTE-based real-time communications
US-12225611-B2 · Feb 11, 2025 · US
Catalyst for hydrogenation reaction and method for producing same
US-2024299919-A1 · Sep 12, 2024 · US
A process for producing alpha olefins
US-2023416170-A1 · Dec 28, 2023 · US
Production of 2,2,4,4-tetramethylcyclobutane-1,3-diol from secondary alcohols and 2,2,4,4-tetramethylcyclobutanedione using homogeneous catalysts
US-2023406792-A1 · Dec 21, 2023 · US
5g avoidance during lte-based real-time communications
US-2023312435-A1 · Oct 5, 2023 · US
Methods of arene alkenylation
US-2023234900-A1 · Jul 27, 2023 · US
5G avoidance during LTE-based real-time communications
US-11702376-B2 · Jul 18, 2023 · US
Catalyst for hydrogenation reaction and method for producing same
US-2022134323-A1 · May 5, 2022 · US
5g avoidance during lte-based real-time communications
US-2022112143-A1 · Apr 14, 2022 · US
5G avoidance during LTE-based real-time communications
US-11212859-B2 · Dec 28, 2021 · US
5g avoidance during lte-based real-time communications
US-2021160945-A1 · May 27, 2021 · US
Ethylene oligomerization processes
US-10793489-B2 · Oct 6, 2020 · US
Ethane oxidative dehydrogenation
US-2020223768-A1 · Jul 16, 2020 · US
Ethane oxidative dehydrogenation
US-2020223769-A1 · Jul 16, 2020 · US
Ethylene Oligomerization Processes
US-2020095178-A1 · Mar 26, 2020 · US
Preparation method for conjugated diene compound
US-2020048162-A1 · Feb 13, 2020 · US
Ethylene oligomerization process
US-10544070-B2 · Jan 28, 2020 · US
Magnetic ferrocenyl-functionalized nanoparticle
US-10463391-B2 · Nov 5, 2019 · US
Ethylene Oligomerization Processes
US-2019276377-A1 · Sep 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C2531/28?
- CPC C07C2531/28 is the Cooperative Patent Classification code for “of the platinum group metals, iron group metals or copper.”
- How many patents are filed under CPC C07C2531/28 (of the platinum group metals, iron group metals or copper)?
- Our database includes 66 publications tagged with this CPC code.
- Is patent activity under CPC C07C2531/28 growing?
- Publication counts under this code: 1 in 2024 vs 8 in 2025 (latest complete years).