C30B 1/00 Single-crystal growth directly from the solid state (unidirectional demixing of eutectoid materials C30B3/00; under a protective fluid C30B27/00)
Introduced: January 1980
Title
Titles differ between systems:
IPC: Single-crystal growth directly from the solid state
CPC: Single-crystal growth directly from the solid state (unidirectional demixing of eutectoid materials C30B3/00; under a protective fluid C30B27/00)
Full Title
Full titles differ between systems:
Single-crystal growth directly from the solid state
Single-crystal growth directly from the solid state (unidirectional demixing of eutectoid materials C30B3/00; under a protective fluid C30B27/00)
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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Top Applicants
Top Applicants (IPC)
Class C30,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 1,516
- SUMCO CORPORATION JP 786
- SUMCO CORPORATION 703
- SUMITOMO ELECTRIC INDUSTRIES JP 604
- SHIN ETSU HANDOTAI COMPANY JP 556
- GLOBALWAFERS COMPANY TW 492
- APPLIED MATERIALS US 463
- SHIN ETSU HANDOTAI COMPANY 450
- SUMITOMO ELECTRIC INDUSTRIES 436
- SILTRONIC DE 429
Top Applicants (CPC)
Class C30,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 1,052
- SUMCO CORPORATION JP 881
- APPLIED MATERIALS US 871
- SUMITOMO ELECTRIC INDUSTRIES JP 682
- SHIN ETSU HANDOTAI COMPANY JP 649
- SHIN-ETSU CHEMICAL COMPANY JP 506
- SUMCO CORPORATION 500
- SILTRONIC DE 491
- GLOBALWAFERS COMPANY TW 458
- NGK INSULATORS JP 379