Opening, closing or clamping means

Opening, closing or clamping means · 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 codeB29C49/56
Official titleOpening, closing or clamping means
Display labelOpening, closing or clamping means
Total patents144

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
201520
201613
201714
201816
201926
20209
202112
202214
20237
20244
20254
20265

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 B29C49/56?
CPC B29C49/56 is the Cooperative Patent Classification code for “Opening, closing or clamping means.”
How many patents are filed under CPC B29C49/56 (Opening, closing or clamping means)?
Our database includes 144 publications tagged with this CPC code.
Is patent activity under CPC B29C49/56 growing?
Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).