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CPC Subgroup
C30B 1/12

by pressure treatment during the growth

Full Title

Single-crystal growth directly from the solid state (unidirectional demixing of eutectoid materials C30B3/00; under a protective fluid C30B27/00) > by pressure treatment during the growth

Filing statistics

CPC C30B 1/12 belongs to the parent subclass C30B, which recorded 47,784 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,425 in 2013 to 5,586 in 2023 (+63%), peaking at 5,757 applications in 2022. The most active applicants in class C30 are CHINESE ACADEMY OF SCIENCES (1,052 applications), SUMCO CORPORATION (881 applications) and APPLIED MATERIALS (871 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

Top 10 applicants by patent filingsfor class C30, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 1,052
  2. SUMCO CORPORATION JP 881
  3. APPLIED MATERIALS US 871
  4. SUMITOMO ELECTRIC INDUSTRIES JP 682
  5. SHIN ETSU HANDOTAI COMPANY JP 649
  6. SHIN-ETSU CHEMICAL COMPANY JP 506
  7. SUMCO CORPORATION 500
  8. SILTRONIC DE 491
  9. GLOBALWAFERS COMPANY TW 458
  10. NGK INSULATORS JP 379