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IPC Subgroup
B32B 5/02

characterised by structural features of a layer comprising fibres or filaments

Introduced: September 1968

Last revised: January 2006

Full Title

Layered products characterised by the non-homogeneity or physical structure of a layer > characterised by structural features of a layer comprising fibres or filaments

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

5 direct subcodes

Child Classifications

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  • B32B 5/04 characterised by a layer being specifically extensible by reason of its structure or arrangement
  • B32B 5/06 characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
  • B32B 5/08 the fibres or filaments of a layer being specially arranged or being of different substances
  • B32B 5/1 characterised by a fibrous layer reinforced with filaments
  • B32B 5/12 characterised by the relative arrangement of fibres or filaments of adjacent 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