rods and flat surfaces interengaging by projections and mating sockets

rods and flat surfaces interengaging by projections and mating sockets · 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 codeF16B9/09
Official title{rods and flat surfaces interengaging by projections and mating sockets}
Display labelrods and flat surfaces interengaging by projections and mating sockets
Total patents34

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
20152
20161
20172
20182
20194
20206
20216
20226
20234
20251

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 F16B9/09?
CPC F16B9/09 is the Cooperative Patent Classification code for “rods and flat surfaces interengaging by projections and mating sockets.”
How many patents are filed under CPC F16B9/09 (rods and flat surfaces interengaging by projections and mating sockets)?
Our database includes 34 publications tagged with this CPC code.
Is patent activity under CPC F16B9/09 growing?
Publication counts under this code: 4 in 2023 vs 1 in 2025 (latest complete years).