Furnace black {; Preparation thereof (separation or recovery C09C1/487)}

Furnace black {; Preparation thereof (separation or recovery C09C1/487)} · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC09C1/50
Official titleFurnace black {; Preparation thereof (separation or recovery C09C1/487)}
Display labelFurnace black {; Preparation thereof (separation or recovery C09C1/487)}
Total patents52

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20156
20164
20173
20184
20196
20205
20216
20221
20234
20246
20257

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC C09C1/50?
CPC C09C1/50 is the Cooperative Patent Classification code for “Furnace black {; Preparation thereof (separation or recovery C09C1/487)}.”
How many patents are filed under CPC C09C1/50 (Furnace black {; Preparation thereof (separation or recovery C09C1/487)})?
Our database includes 52 publications tagged with this CPC code.
Is patent activity under CPC C09C1/50 growing?
Publication counts under this code: 6 in 2024 vs 7 in 2025 (latest complete years).