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PCE
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CPC Subgroup
B32B 3/26

characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids

Full Title

Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form > characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids

4 direct subcodes

Child Classifications

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  • B32B 3/263
  • B32B 3/266
  • B32B 3/28 characterised by a layer comprising a deformed thin sheet , e.g. corrugated, crumpled (B32B29/08 takes precedence)
  • B32B 3/30 characterised by a layer formed with recesses or projections, e.g.

Top Applicants

Top 10 applicants by patent filingsfor 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