the disc or ring being metallic

the disc or ring being metallic · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeF16D3/79
Official titlethe disc or ring being metallic
Display labelthe disc or ring being metallic
Total patents52

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20153
20168
20172
20187
20193
20206
20217
20226
20234
20243
20253

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 F16D3/79?
CPC F16D3/79 is the Cooperative Patent Classification code for “the disc or ring being metallic.”
How many patents are filed under CPC F16D3/79 (the disc or ring being metallic)?
Our database includes 52 publications tagged with this CPC code.
Is patent activity under CPC F16D3/79 growing?
Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).