Method of producing multimodal polyethylene using at least one group iii-based or lanthanide-based biphenylphenoxy catalyst
US-2026071015-A1 · Mar 12, 2026 · US
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Pretreating with metals or metal-containing compounds
Pretreating with metals or metal-containing compounds · 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 | C08F4/652 |
| Official title | Pretreating with metals or metal-containing compounds |
| Display label | Pretreating with metals or metal-containing compounds |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Linear low density polyethylene copolymer
US-2025002620-A1 · Jan 2, 2025 · US
Metallocene compound, metallocene-supported catalyst, and method of preparing polyolefin using the same
US-10450390-B2 · Oct 22, 2019 · US
Catalyst components for the polymerization of olefins
US-10113012-B2 · Oct 30, 2018 · US
Metallocene compound, metallocene-supported catalyst, and method of preparing polyolefin using the same
US-2017283522-A1 · Oct 5, 2017 · US
Catalysts of the ziegler-natta type for the (co)polymerization of olefins with a high productivity
US-9334341-B2 · May 10, 2016 · US
Semi continuous process for the synthesis of a catalyst for use in the manufacture of polyolefins
US-9040444-B2 · May 26, 2015 · US