the spring material being contained in a generally closed space (F16F1/393 takes precedence)

the spring material being contained in a generally closed space (F16F1/393 takes precedence) · 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 codeF16F1/445
Official title{the spring material being contained in a generally closed space (F16F1/393 takes precedence)}
Display labelthe spring material being contained in a generally closed space (F16F1/393 takes precedence)
Total patents49

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
20154
20165
20174
20187
20194
20205
20216
20223
20235
20243
20252
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 F16F1/445?
CPC F16F1/445 is the Cooperative Patent Classification code for “the spring material being contained in a generally closed space (F16F1/393 takes precedence).”
How many patents are filed under CPC F16F1/445 (the spring material being contained in a generally closed space (F16F1/393 takes precedence))?
Our database includes 49 publications tagged with this CPC code.
Is patent activity under CPC F16F1/445 growing?
Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).