Burned rice husks or other burned vegetable material

Burned rice husks or other burned vegetable material · 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 codeC04B18/101
Official title{Burned rice husks or other burned vegetable material}
Display labelBurned rice husks or other burned vegetable material
Total patents61

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20155
20164
20177
20184
20191
20207
202112
20224
20237
20247
20251
20262

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 C04B18/101?
CPC C04B18/101 is the Cooperative Patent Classification code for “Burned rice husks or other burned vegetable material.”
How many patents are filed under CPC C04B18/101 (Burned rice husks or other burned vegetable material)?
Our database includes 61 publications tagged with this CPC code.
Is patent activity under CPC C04B18/101 growing?
Publication counts under this code: 7 in 2024 vs 1 in 2025 (latest complete years).