Brass, i.e. copper (Cu) and zinc (Zn) alloys

Brass, i.e. copper (Cu) and zinc (Zn) alloys · Cooperative Patent Classification (CPC)

Textile and paper production, treatment, and products.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeD07B2205/3089
Official titleBrass, i.e. copper (Cu) and zinc (Zn) alloys
Display labelBrass, i.e. copper (Cu) and zinc (Zn) alloys
Total patents67

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
201512
20165
20178
20189
20195
20209
20215
20224
20233
20245
20252

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 D07B2205/3089?
CPC D07B2205/3089 is the Cooperative Patent Classification code for “Brass, i.e. copper (Cu) and zinc (Zn) alloys.”
How many patents are filed under CPC D07B2205/3089 (Brass, i.e. copper (Cu) and zinc (Zn) alloys)?
Our database includes 67 publications tagged with this CPC code.
Is patent activity under CPC D07B2205/3089 growing?
Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).