Method for preparing low-pour point, high-aromatic, and environmental-friendly rubber oil by combining extraction and dewaxing
US-2026028541-A1 · Jan 29, 2026 · US
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Nitrogen-containing compounds
Nitrogen-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 | C10G73/16 |
| Official title | Nitrogen-containing compounds |
| Display label | Nitrogen-containing compounds |
| Total patents | 3 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2018 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.