Spray-dried catalysts containing a germanium-bridged bis-biphenyl-phenoxy organometallic compound for making ethylene-based copolymers
US-12492270-B2 · Dec 9, 2025 · US
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Dianionic ligand
Dianionic ligand · 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 | C08F4/64068 |
| Official title | {Dianionic ligand} |
| Display label | Dianionic ligand |
| Total patents | 4 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2023 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Catalyst systems and processes for producing polyethylene using the same
US-12428502-B2 · Sep 30, 2025 · US
Spray-dried catalysts containing a germanium-bridged bis-biphenyl-phenoxy organometallic compound for making ethylene-based copolymers
US-2023287159-A1 · Sep 14, 2023 · US
Catalyst systems and processes for producing polyethylene using the same
US-2023235099-A1 · Jul 27, 2023 · US