Stretching or treating the layers before application on the drum (during application B29D30/30)

Stretching or treating the layers before application on the drum (during application B29D30/30) · 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 codeB29D30/44
Official titleStretching or treating the layers before application on the drum (during application B29D30/30)
Display labelStretching or treating the layers before application on the drum (during application B29D30/30)
Total patents54

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20168
20174
20183
20199
20209
20213
20228
20234
20243
20253

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 B29D30/44?
CPC B29D30/44 is the Cooperative Patent Classification code for “Stretching or treating the layers before application on the drum (during application B29D30/30).”
How many patents are filed under CPC B29D30/44 (Stretching or treating the layers before application on the drum (during application B29D30/30))?
Our database includes 54 publications tagged with this CPC code.
Is patent activity under CPC B29D30/44 growing?
Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).