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CPC Main Group
C09K 3/00

Materials not provided for elsewhere

10 direct subcodes

Child Classifications

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  • C09K 3/12 Materials for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D5/34)
  • C09K 3/16 Anti-static materials
  • C09K 3/20 as substitutes for glycerol in its non-chemical uses, e.g. as a base in toiletry creams or ointments
  • C09K 3/22 for dust-laying or dust-absorbing
  • C09K 3/24 for simulating ice or snow
  • C09K 3/30 for aerosols (aerosol containers B65D83/14)
  • C09K 3/32 for absorbing liquids to remove pollution, e.g. oil, gasoline, fat

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