CPC Subgroup
C30B 29/22 Complex oxides
Full Title
Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape > Inorganic compounds or compositions > Oxides > Complex oxides
6 direct subcodes
Child Classifications
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- C30B 29/24 with formula AMeO3, wherein A is a rare earth metal and Me is Fe, Ga, Sc, Cr, Co or Al, e.g. ortho ferrites
- C30B 29/26 with formula BMe2O4, wherein B is Mg, Ni, Co, Al, Zn, or Cd and Me is Fe, Ga, Sc, Cr, Co, or Al
- C30B 29/28 with formula A3Me5O12 wherein A is a rare earth metal and Me is Fe, Ga, Sc, Cr, Co or Al, e.g. garnets
- C30B 29/30 Niobates; Vanadates; Tantalates
- C30B 29/32 Titanates; Germanates; Molybdates; Tungstates
Top Applicants
Top 10 applicants by patent filingsfor 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