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PCE
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CPC Subgroup
C04B 5/06

Ingredients, other than water, added to the molten slag ; Treatment with gases or gas generating compounds, e.g. to obtain porous slag

Full Title

Treatment of slag (manufacture of slag wool C03B; in, or for, the production of metals C21B, C22B); Artificial stone from molten slag > Ingredients, other than water, added to the molten slag ; Treatment with gases or gas generating compounds, e.g. to obtain porous slag

1 direct subcode

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Top Applicants

Top 10 applicants by patent filingsfor class C04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. HALLIBURTON ENERGY SERVICES GROUP US 2,158
  2. CHINESE ACADEMY OF SCIENCES 1,569
  3. NGK INSULATORS JP 1,504
  4. SIKA TECHNOLOGY CH 1,181
  5. CORNING US 974
  6. WUHAN UNIVERSITY OF TECHNOLOGY 926
  7. UNITED STATES GYPSUM COMPANY US 882
  8. GE (GENERAL ELECTRIC COMPANY) US 828
  9. MITSUBISHI MATERIALS CORPORATION JP 792
  10. SAUDI ARABIAN OIL COMPANY SA 686