CPC Main Group
B32B 37/00 Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
Filing statistics
CPC B32B 37/00 belongs to the parent subclass B32B, which recorded 381,235 patent applications worldwide between 2013 and 2023. Annual filings declined from 28,950 in 2013 to 24,486 in 2023 (-15%), peaking at 43,790 applications in 2016. The most active applicants in class B32 are NITTO DENKO CORPORATION (5,666 applications), SAINT-GOBAIN GLASS (4,491 applications) and 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) (3,703 applications).
Source: EPO PATSTAT, worldwide filings
14 direct subcodes
Child Classifications
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- B32B 37/02 characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
- B32B 37/04 characterised by the partial melting of at least one layer
- B32B 37/06 characterised by the heating method
- B32B 37/08 characterised by the cooling method
- B32B 37/10 characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
- B32B 37/12 characterised by using adhesives
- B32B 37/14 characterised by the properties of the layers
- B32B 37/28 involving assembly of non-flat intermediate products which are flattened at a later step, e.g. tubes
- B32B 37/30 Partial laminating
Top Applicants
Top 10 applicants by patent filingsfor class B32, 2013–2023, worldwide · Source: EPO PATSTAT
- NITTO DENKO CORPORATION JP 5,666
- SAINT-GOBAIN GLASS FR 4,491
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 3,703
- DOW GLOBAL TECHNOLOGIES US 3,403
- NITTO DENKO CORPORATION 3,009
- FUJIFILM JP 2,629
- CORNING US 2,623
- LG CHEM KR 2,576
- SEKISUI CHEMICAL COMPANY JP 2,482
- TORAY INDUSTRIES JP 2,189