What is CPC F16B21/12?

CPC F16B21/12 is the Cooperative Patent Classification code for “with locking-pins or split-pins thrust into holes.”

How many patents are filed under CPC F16B21/12 (with locking-pins or split-pins thrust into holes)?

Our database includes 141 publications tagged with this CPC code.

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

with locking-pins or split-pins thrust into holes · 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	F16B21/12
Official title	with locking-pins or split-pins thrust into holes
Display label	with locking-pins or split-pins thrust into holes
Total patents	141

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

Filing activity over the last five years is declining.

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 F16B21/12?: CPC F16B21/12 is the Cooperative Patent Classification code for “with locking-pins or split-pins thrust into holes.”
How many patents are filed under CPC F16B21/12 (with locking-pins or split-pins thrust into holes)?: Our database includes 141 publications tagged with this CPC code.
Is patent activity under CPC F16B21/12 growing?: Publication counts under this code: 8 in 2024 vs 8 in 2025 (latest complete years).