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Rotary-piston machines or pumps with fluid ring or the like (such pumps specially adapted for elastic fluids F04C19/00)

Rotary-piston machines or pumps with fluid ring or the like (such pumps specially adapted for elastic fluids F04C19/00) · 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 codeF04C7/00
Official titleRotary-piston machines or pumps with fluid ring or the like (such pumps specially adapted for elastic fluids F04C19/00)
Display labelRotary-piston machines or pumps with fluid ring or the like (such pumps specially adapted for elastic fluids F04C19/00)
Total patents11

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20182
20191
20201
20211
20221
20231
20242
20252

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.