Aluminium nitride

Aluminium nitride · 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 codeC04B2237/366
Official titleAluminium nitride
Display labelAluminium nitride
Total patents570

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
201545
201649
201744
201838
201946
202056
202153
202256
202364
202458
202552
20269

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 C04B2237/366?
CPC C04B2237/366 is the Cooperative Patent Classification code for “Aluminium nitride.”
How many patents are filed under CPC C04B2237/366 (Aluminium nitride)?
Our database includes 570 publications tagged with this CPC code.
Is patent activity under CPC C04B2237/366 growing?
Publication counts under this code: 58 in 2024 vs 52 in 2025 (latest complete years).