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CPC Main Group
B32B 23/00

Layered products comprising cellulosic plastic substances

7 direct subcodes

Child Classifications

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  • B32B 23/02 in the form of fibres or filaments
  • B32B 23/10 next to a fibrous or filamentary layer
  • B32B 23/12 next to a particulate layer
  • B32B 23/20 comprising esters
  • B32B 23/22 comprising ethers

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