C01C AMMONIA; CYANOGEN; COMPOUNDS THEREOF (; salts of oxyacids of halogens C01B11/00; peroxides, salts of peroxyacids C01B15/00; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium or tellurium C01B19/00; azides C01B21/08; ; metal imides or amides C01B21/092; nitrites C01B21/50; ; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; compounds containing silicon C01B33/00; compounds containing boron C01B35/00)
Introduced: September 1968
Description
C01C covers the production, purification, and chemical compounds of ammonia and cyanogen, along with their derivatives. This includes synthetic ammonia manufacture, ammonia recovery processes, and the preparation of cyanides, isocyanides, and related nitrogen-containing compounds. The subclass encompasses both industrial synthesis methods and laboratory-scale preparation techniques for ammonia and cyanogen-based products used in fertilizers, chemicals, and pharmaceutical synthesis.
Title
Titles differ between systems:
IPC: AMMONIA; CYANOGEN; COMPOUNDS THEREOF
CPC: AMMONIA; CYANOGEN; COMPOUNDS THEREOF (; salts of oxyacids of halogens C01B11/00; peroxides, salts of peroxyacids C01B15/00; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium or tellurium C01B19/00; azides C01B21/08; ; metal imides or amides C01B21/092; nitrites C01B21/50; ; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; compounds containing silicon C01B33/00; compounds containing boron C01B35/00)
Full Title
Full titles differ between systems:
AMMONIA; CYANOGEN; COMPOUNDS THEREOF
AMMONIA; CYANOGEN; COMPOUNDS THEREOF (; salts of oxyacids of halogens C01B11/00; peroxides, salts of peroxyacids C01B15/00; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium or tellurium C01B19/00; azides C01B21/08; ; metal imides or amides C01B21/092; nitrites C01B21/50; ; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; compounds containing silicon C01B33/00; compounds containing boron C01B35/00)
Additional Content IPC
Glossary
Direct bonding Requires a bond between two adjacent atoms. Inorganic compound inorganic compounds A compound devoid of a carbon atom and containing a non-metallic element or a compound containing a carbon atom, and satisfying one of the following criteria: the compound cannot have a carbon atom having direct bonding to another carbon atom; or the compound cannot have direct bonding between a carbon atom and a halogen or hydrogen atom; or the compound cannot have direct bonding between a carbon atom and a nitrogen atom by a single or double bond. The following are exceptions to the above and are to be considered as inorganic compounds: compounds consisting of only carbon atoms, (e.g. fullerenes), cyanogen, cyanogen halides, cyanamide, phosgene, thiophosgene, hydrocyanic acid, isocyanic acid, isothiocyanic acid, fulminic acid, unsubstituted carbamic acid, and salts of the previously mentioned acids and which contain the same limitations as to a carbon atom. Moiety A specific part of a molecule. Preparation Preparations Covers synthesis, purification, separation, stabilisation or use of additives, unless a separate place is provided in the classification scheme.
Limiting references
Salts of the oxyacids of halogens Peroxides, salts of peroxyacids Thiosulfates, dithionites, polythionates Compounds containing selenium or tellurium Azides Metal amides Ammonium salts of carbamic acid Nitrites Phosphides Salts of the oxyacids of phosphorus Ammonium phosphates Compounds containing silicon Compounds containing boron Preparing inorganic compounds except carbon dioxide using enzymes or fermentation processes Electrolytic production of inorganic compounds or non-metals Processes of producing compounds in which electricity is simultaneously produced Electrophoretic production of inorganic compounds or non-metals
Application references
Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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Top Applicants
Top Applicants (IPC)
Class C01,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 5,794
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 3,286
- LG CHEM KR 2,689
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,669
- CENTRAL SOUTH UNIVERSITY 1,531
- KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 1,252
- SUMITOMO METAL MINING COMPANY JP 1,073
- ZHEJIANG UNIVERSITY 1,061
- PANASONIC INTELLECTUAL PROPERTY JP 1,058
- PANASONIC INTELLECTUAL PROPERTY 1,038
Top Applicants (CPC)
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