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CPC Subgroup Additional Only
C09K 2200/068

Containing also other elements than carbon, oxygen or nitrogen in the polymer main chain

Full Title

Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers > Macromolecular organic compounds, e.g. prepolymers > Containing also other elements than carbon, oxygen or nitrogen in the polymer main chain

2 direct subcodes

Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor class C09, 2013–2023, worldwide · Source: EPO PATSTAT

  1. LG CHEM KR 7,954
  2. HALLIBURTON ENERGY SERVICES GROUP US 6,584
  3. NITTO DENKO CORPORATION JP 6,500
  4. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,490
  5. DOW GLOBAL TECHNOLOGIES US 6,324
  6. FUJIFILM JP 5,832
  7. MERCK PATENT DE 5,481
  8. BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,147
  9. SAMSUNG DISPLAY KR 5,105
  10. NITTO DENKO CORPORATION 3,584