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CPC Subgroup Additional Only
B32B 2333/04

Polymers of esters

Full Title

Polymers of unsaturated acids or derivatives thereof > Polymers of esters

2 direct subcodes

Child Classifications

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  • B32B 2333/08 Polymers of acrylic acid esters, e.g. PMA, i.e. polymethylacrylate
  • B32B 2333/12 Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate

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