Metallocene supported catalyst and method for preparing polyolefin using the same
US-2018282442-A1 · Oct 4, 2018 · US
Cyclic bridge, i.e. Cp or analog where the bridging unit linking the two Cps or analogs is part of a cyclic group
Cyclic bridge, i.e. Cp or analog where the bridging unit linking the two Cps or analogs is part of a cyclic group · 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 | C08F2420/09 |
| Official title | Cyclic bridge, i.e. Cp or analog where the bridging unit linking the two Cps or analogs is part of a cyclic group |
| Display label | Cyclic bridge, i.e. Cp or analog where the bridging unit linking the two Cps or analogs is part of a cyclic group |
| Total patents | 142 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 20 |
| 2017 | 21 |
| 2018 | 20 |
| 2019 | 16 |
| 2020 | 8 |
| 2021 | 11 |
| 2022 | 10 |
| 2023 | 6 |
| 2024 | 5 |
| 2025 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metallocene compound, catalyst for olefin polymer, method for producing olefin polymer, and olefin polymer
US-10005864-B2 · Jun 26, 2018 · US
Method for preparing polyolefin and polyolefin prepared thereby
US-9988469-B2 · Jun 5, 2018 · US
Cyclopropyl Substituted Metallocene Catalysts
US-2018066083-A1 · Mar 8, 2018 · US
Cyclopropyl substituted metallocene catalysts
US-9834628-B2 · Dec 5, 2017 · US
Bicyclic Bridged Metallocene Compounds and Polymers Produced Therefrom
US-2017342099-A1 · Nov 30, 2017 · US
Metallocene compounds, catalyst compositions comprising the same, and method for preparing olefin polymers using the same
US-9828403-B2 · Nov 28, 2017 · US
Process for producing olefin polymer and olefin polymer
US-2017327610-A1 · Nov 16, 2017 · US
Process for producing olefin polymer and olefin polymer
US-2017327611-A1 · Nov 16, 2017 · US
Metallocene compound, catalyst for olefin polymer, method for producing olefin polymer, and olefin polymer
US-2017320981-A1 · Nov 9, 2017 · US
Tetrahydro-as-indacenyl catalyst composition, catalyst system, and processes for use thereof
US-2017320976-A1 · Nov 9, 2017 · US
Bimodal propylene polymers and sequential polymerization
US-9809664-B2 · Nov 7, 2017 · US
Tetrahydro-as-indacenyl catalyst composition, catalyst system, and processes for use thereof
US-9803037-B1 · Oct 31, 2017 · US
Transition metal compound, olefin polymerization catalyst, and olefin polymer production process
US-9796799-B2 · Oct 24, 2017 · US
Metallocene compound, catalyst for olefin polymer, method for producing olefin polymer, and olefin polymer
US-9783625-B2 · Oct 10, 2017 · US
Production method of olefin (co)polymer containing constituent unit derived from 1-butene
US-2017275396-A1 · Sep 28, 2017 · US
Bicyclic bridged metallocene compounds and polymers produced therefrom
US-9758540-B1 · Sep 12, 2017 · US
Metallocenes and catalyst compositions derived therefrom
US-9745390-B2 · Aug 29, 2017 · US
Catalyst comprising a metallocene complex and a co-catalyst
US-2017240662-A1 · Aug 24, 2017 · US
High activity catalyst supportation
US-9725537-B2 · Aug 8, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F2420/09?
- CPC C08F2420/09 is the Cooperative Patent Classification code for “Cyclic bridge, i.e. Cp or analog where the bridging unit linking the two Cps or analogs is part of a cyclic group.”
- How many patents are filed under CPC C08F2420/09 (Cyclic bridge, i.e. Cp or analog where the bridging unit linking the two Cps or analogs is part of a cyclic group)?
- Our database includes 142 publications tagged with this CPC code.
- Is patent activity under CPC C08F2420/09 growing?
- Publication counts under this code: 5 in 2024 vs 10 in 2025 (latest complete years).