What is CPC F16B7/0446?

CPC F16B7/0446 is the Cooperative Patent Classification code for “for tubes using the innerside thereof (F16B7/025 takes precedence).”

How many patents are filed under CPC F16B7/0446 (for tubes using the innerside thereof (F16B7/025 takes precedence))?

Our database includes 77 publications tagged with this CPC code.

Publication counts under this code: 8 in 2024 vs 11 in 2025 (latest complete years).

for tubes using the innerside thereof (F16B7/025 takes precedence) · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F16B7/0446
Official title	{for tubes using the innerside thereof (F16B7/025 takes precedence)}
Display label	for tubes using the innerside thereof (F16B7/025 takes precedence)
Total patents	77

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

Filing activity over the last five years is growing.

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

Answers are generated from the same data shown on this page.

What is CPC F16B7/0446?: CPC F16B7/0446 is the Cooperative Patent Classification code for “for tubes using the innerside thereof (F16B7/025 takes precedence).”
How many patents are filed under CPC F16B7/0446 (for tubes using the innerside thereof (F16B7/025 takes precedence))?: Our database includes 77 publications tagged with this CPC code.
Is patent activity under CPC F16B7/0446 growing?: Publication counts under this code: 8 in 2024 vs 11 in 2025 (latest complete years).