Arrangements for fireproofing (fireproofing materials C09K21/00)

Arrangements for fireproofing (fireproofing materials C09K21/00) · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB27N9/00
Official titleArrangements for fireproofing (fireproofing materials C09K21/00)
Display labelArrangements for fireproofing (fireproofing materials C09K21/00)
Total patents51

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20182
20205
20214
20229
20238
202410
202512
20261

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 B27N9/00?
CPC B27N9/00 is the Cooperative Patent Classification code for “Arrangements for fireproofing (fireproofing materials C09K21/00).”
How many patents are filed under CPC B27N9/00 (Arrangements for fireproofing (fireproofing materials C09K21/00))?
Our database includes 51 publications tagged with this CPC code.
Is patent activity under CPC B27N9/00 growing?
Publication counts under this code: 10 in 2024 vs 12 in 2025 (latest complete years).