DIFF Subgroup
C30B 11/14 characterised by the seed, e.g. its crystallographic orientation
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Single-crystal-growth by normal freezing or freezing under temperature gradient, e.g. Bridgman- Stockbarger method > characterised by the seed, e.g. its crystallographic orientation
CPC:
Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method (C30B13/00, C30B15/00, C30B17/00, C30B19/00 take precedence; under a protective fluid C30B27/00) > characterised by the seed, e.g. its crystallographic orientation
No child classifications to compare. This is a leaf node in both IPC and CPC.
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