CPC Subgroup
C01F 11/36 Nitrates
Full Title
Compounds of calcium, strontium, or barium (C01F7/00 takes precedence) > Nitrates
4 direct subcodes
Child Classifications
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- C01F 11/38 Preparation with nitric acid or nitrogen oxides
- C01F 11/40 Preparation by double decomposition with nitrates
- C01F 11/42 Double salts (with magnesium C01F5/38)
- C01F 11/44 Concentrating; Crystallisating; Dehydrating; Preventing the absorption of moisture or caking
Top Applicants
Top 10 applicants by patent filingsfor class C01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 4,293
- LG CHEM KR 3,317
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,219
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 2,154
- OMYA INTERNATIONAL CH 1,524
- PANASONIC INTELLECTUAL PROPERTY JP 1,362
- SAUDI ARABIAN OIL COMPANY SA 1,298
- SUMITOMO METAL MINING COMPANY JP 1,286
- CENTRAL SOUTH UNIVERSITY 1,243
- L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,238