reciprocating movement of the pumping members being obtained by a double-acting liquid motor

reciprocating movement of the pumping members being obtained by a double-acting liquid motor · 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 codeF04B9/113
Official titlereciprocating movement of the pumping members being obtained by a double-acting liquid motor
Display labelreciprocating movement of the pumping members being obtained by a double-acting liquid motor
Total patents52

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20155
20163
20174
20183
20196
20204
20213
20224
20235
20247
20257
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 F04B9/113?
CPC F04B9/113 is the Cooperative Patent Classification code for “reciprocating movement of the pumping members being obtained by a double-acting liquid motor.”
How many patents are filed under CPC F04B9/113 (reciprocating movement of the pumping members being obtained by a double-acting liquid motor)?
Our database includes 52 publications tagged with this CPC code.
Is patent activity under CPC F04B9/113 growing?
Publication counts under this code: 7 in 2024 vs 7 in 2025 (latest complete years).