External donor for olefin polymerization
US-2018362675-A1 · Dec 20, 2018 · US
containing silicium
containing silicium · 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 | C08F4/6465 |
| Official title | {containing silicium} |
| Display label | containing silicium |
| Total patents | 347 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 15 |
| 2017 | 18 |
| 2018 | 29 |
| 2019 | 53 |
| 2020 | 60 |
| 2021 | 42 |
| 2022 | 47 |
| 2023 | 27 |
| 2024 | 28 |
| 2025 | 18 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Propylene copolymers
US-2018362682-A1 · Dec 20, 2018 · US
Catalyst component for olefin polymerization, preparation method therefor and catalyst thereof
US-10150822-B2 · Dec 11, 2018 · US
Catalyst component for the preparation of nucleated polyolefins
US-10138308-B2 · Nov 27, 2018 · US
Catalyst Systems and Processes for Using the Same
US-2018327524-A1 · Nov 15, 2018 · US
Process of preparation of drag reducing polymers and usage thereof
US-10094399-B2 · Oct 9, 2018 · US
Producing high comonomer content propylene-based polymers
US-10093759-B2 · Oct 9, 2018 · US
Adhesives comprising amorphous propylene-ethylene copolymers
US-2018282450-A1 · Oct 4, 2018 · US
Adhesive composition comprising amorphous propylene-ethylene copolymer and polyolefins
US-2018282451-A1 · Oct 4, 2018 · US
Composition comprising propylene-ethylene-1-butene terpolymers
US-2018237564-A1 · Aug 23, 2018 · US
Polyethylene composition having high mechanical properties and processability
US-2018237621-A1 · Aug 23, 2018 · US
Gas-phase process for the polymerization of propylene
US-2018215845-A1 · Aug 2, 2018 · US
Method for producing propylene block copolymer
US-10011669-B2 · Jul 3, 2018 · US
Catalyst system for polymerization of an olefin
US-10000591-B2 · Jun 19, 2018 · US
Two-stage process for producing polypropylene compositions
US-9994656-B2 · Jun 12, 2018 · US
Methods of preparing a catalyst
US-9988468-B2 · Jun 5, 2018 · US
Catalyst system for polymerization of an olefin
US-9944734-B2 · Apr 17, 2018 · US
Propylene-based polymer with reduced high-molecular weight portion
US-9908952-B2 · Mar 6, 2018 · US
Precursor for catalyst, process for preparing the same and its use thereof
US-9890229-B2 · Feb 13, 2018 · US
Propylene copolymer composition with improved long-term mechanical properties
US-2018037717-A1 · Feb 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F4/6465?
- CPC C08F4/6465 is the Cooperative Patent Classification code for “containing silicium.”
- How many patents are filed under CPC C08F4/6465 (containing silicium)?
- Our database includes 347 publications tagged with this CPC code.
- Is patent activity under CPC C08F4/6465 growing?
- Publication counts under this code: 28 in 2024 vs 18 in 2025 (latest complete years).