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being formed by two closure members working in series

being formed by two closure members working in series · 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 codeF04B53/1005
Official title{being formed by two closure members working in series}
Display labelbeing formed by two closure members working in series
Total patents19

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
20171
20181
20191
20201
20213
20221
20233
20243
20251
20262

Representative patents

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