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CPC Subgroup
C09K 17/02

containing inorganic compounds only

Full Title

Soil-conditioning materials or soil-stabilising materials (specially adapted for boreholes or wells C09K8/00; fertilisers C05; consolidating by placing solidifying or pore-filling substances in the soil E02D3/12) > containing inorganic compounds only

5 direct subcodes

Child Classifications

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  • C09K 17/06 Calcium compounds, e.g. lime
  • C09K 17/08 Aluminium compounds, e.g. aluminium hydroxide
  • C09K 17/10 Cements, e.g. Portland cement
  • C09K 17/12 Water-soluble silicates, e.g. waterglass

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