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CPC Subgroup Additional Only
C04B 2237/62

Forming laminates or joined articles comprising holes, channels or other types of openings

Full Title

Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating > Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating > Forming laminates or joined articles comprising holes, channels or other types of openings

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