Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B32B 5/24

one layer being a fibrous or filamentary layer

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Layered products characterised by the non-homogeneity or physical structure of a layer > characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous > one layer being a fibrous or filamentary layer

CPC:

Layered products characterised by the non- homogeneity or physical structure > characterised by the presence of two or more layers which > one layer being a fibrous or filamentary layer

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open

  • B32B 5/245 CPC only CPC only
  • B32B 5/28 impregnated with or embedded in a plastic substance IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class B32,2013–2023, worldwide · Source: EPO PATSTAT

  1. NITTO DENKO CORPORATION JP 5,666
  2. SAINT-GOBAIN GLASS FR 4,491
  3. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 3,703
  4. DOW GLOBAL TECHNOLOGIES US 3,403
  5. NITTO DENKO CORPORATION 3,009
  6. FUJIFILM JP 2,629
  7. CORNING US 2,623
  8. LG CHEM KR 2,576
  9. SEKISUI CHEMICAL COMPANY JP 2,482
  10. TORAY INDUSTRIES JP 2,189