inserting or withdrawing keys

inserting or withdrawing keys · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB25B27/04
Official titleinserting or withdrawing keys
Display labelinserting or withdrawing keys
Total patents69

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
20155
20164
20178
20185
201911
20207
20219
20223
20235
20247
20255

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 B25B27/04?
CPC B25B27/04 is the Cooperative Patent Classification code for “inserting or withdrawing keys.”
How many patents are filed under CPC B25B27/04 (inserting or withdrawing keys)?
Our database includes 69 publications tagged with this CPC code.
Is patent activity under CPC B25B27/04 growing?
Publication counts under this code: 7 in 2024 vs 5 in 2025 (latest complete years).