having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof

having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof · 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 codeF15B2201/32
Official titlehaving multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof
Display labelhaving multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof
Total patents50

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
20156
20161
20175
20184
20196
20205
20213
20224
20237
20245
20253
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 F15B2201/32?
CPC F15B2201/32 is the Cooperative Patent Classification code for “having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof.”
How many patents are filed under CPC F15B2201/32 (having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof)?
Our database includes 50 publications tagged with this CPC code.
Is patent activity under CPC F15B2201/32 growing?
Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).