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changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member

changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member · 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 codeF04B49/005
Official title{changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member}
Display labelchanging the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member
Total patents10

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
20162
20172
20182
20201
20211
20231
20241

Representative patents

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