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IPC Subgroup
B32B 37/14

characterised by the properties of the layers

Introduced: January 2006

Full Title

Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding > characterised by the properties of the layers

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
LAYERED PRODUCTS
Subclass:
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

Filing statistics

IPC B32B 37/14 belongs to the parent subclass B32B, which recorded 496,494 patent applications worldwide between 2013 and 2023. Annual filings grew from 37,194 in 2013 to 37,603 in 2023 (+1%), peaking at 55,086 applications in 2020. The most active applicants in class B32 are NITTO DENKO CORPORATION (4,719 applications), DNP (DAINIPPON PRINTING COMPANY) (3,989 applications) and SAINT-GOBAIN GLASS (3,695 applications).

Source: EPO PATSTAT, worldwide filings

4 direct subcodes

Child Classifications

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  • B32B 37/15 with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
  • B32B 37/24 with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
  • B32B 37/26 with at least one layer which influences the bonding during the laminating process, e.g. release layers or pressure equalising layers

Top Applicants

Top 10 applicants by patent filingsfor class B32, 2013–2023, worldwide · Source: EPO PATSTAT

  1. NITTO DENKO CORPORATION JP 4,719
  2. DNP (DAINIPPON PRINTING COMPANY) 3,989
  3. SAINT-GOBAIN GLASS FR 3,695
  4. NITTO DENKO CORPORATION 3,002
  5. DOW GLOBAL TECHNOLOGIES US 2,809
  6. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 2,679
  7. FUJIFILM JP 2,360
  8. TOPPAN PRINTING COMPANY 2,310
  9. CORNING US 2,168
  10. SEKISUI CHEMICAL COMPANY JP 2,115