B32 LAYERED PRODUCTS
Description
B32 encompasses the manufacture, treatment, and properties of composite materials formed by bonding or assembling multiple layers of different substances into integrated structures. This class covers laminated products, sandwich structures, coated substrates, and multi-ply materials where individual layers provide distinct functional properties (mechanical, thermal, electrical, or protective). Applications include decorative laminates, thermal insulation panels, reinforced composites, and industrial coatings on various base materials. The classification focuses on the structural and manufacturing aspects of layered constructions rather than the properties of individual component materials, which are covered in related material-specific classes.
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM heading +73 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
2013–2023, worldwide · Source: EPO PATSTAT
- NITTO DENKO CORPORATION JP 4,719
- DNP (DAINIPPON PRINTING COMPANY) 3,989
- SAINT-GOBAIN GLASS FR 3,695
- NITTO DENKO CORPORATION 3,002
- DOW GLOBAL TECHNOLOGIES US 2,809
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 2,679
- FUJIFILM JP 2,360
- TOPPAN PRINTING COMPANY 2,310
- CORNING US 2,168
- SEKISUI CHEMICAL COMPANY JP 2,115
Top Applicants (CPC)
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