with conical friction surfaces

with conical friction surfaces · 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 codeF16D7/028
Official title{with conical friction surfaces}
Display labelwith conical friction surfaces
Total patents29

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
20155
20161
20172
20184
20194
20203
20212
20221
20233
20242
20251
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 F16D7/028?
CPC F16D7/028 is the Cooperative Patent Classification code for “with conical friction surfaces.”
How many patents are filed under CPC F16D7/028 (with conical friction surfaces)?
Our database includes 29 publications tagged with this CPC code.
Is patent activity under CPC F16D7/028 growing?
Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).