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IPC Subgroup
B32B 37/16

with all layers existing as coherent layers before laminating

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 > with all layers existing as coherent layers before laminating

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

3 direct subcodes

Child Classifications

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  • B32B 37/18 involving the assembly of discrete sheets or panels only
  • B32B 37/2 involving the assembly of continuous webs only
  • B32B 37/22 involving the assembly of both discrete and continuous 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