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DIFF Subclass Not Allocatable
C01B

NON-METALLIC ELEMENTS; COMPOUNDS THEREOF;

Introduced: September 1968

Description

C01B covers the production, purification, and chemical processing of non-metallic elements and their inorganic compounds, including halogens, oxygen, nitrogen, sulfur, phosphorus, carbon, and silicon, along with their oxides, halides, sulfides, and other derivatives. This classification encompasses industrial chemical processes such as synthesis, separation, and refining methods specific to these elements and their compounds. It excludes metallic elements and their compounds (covered by C01C), as well as organic compounds derived from non-metallic elements (classified elsewhere in organic chemistry).

Title

Titles differ between systems:

IPC: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF

CPC: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF;

Full Title

Full titles differ between systems:

IPC:

NON-METALLIC ELEMENTS; COMPOUNDS THEREOF

CPC:

NON-METALLIC ELEMENTS; COMPOUNDS THEREOF;

Additional Content IPC

Glossary

base-exchange the replacement of one cation absorbed on a material by another binary compound binary compounds a compound containing and limited to two distinct chemical elements 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 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. isomorphous zeolites isomorphous zeolite compounds isomorphous to zeolites wherein the aluminum or silicon atoms in the framework are partly or wholly replaced by atoms of other elements, e.g. by gallium, germanium, phosphorus or boron metal metals any element other than a non-metal metal hydride metal hydrides compound containing only metal and hydrogen molecular sieve molecular sieves materials (e.g. zeolitic or mesoporous) having cavities and channels which by their size allow some molecules to pass through, but prevent others non-metal non-metals the elements of hydrogen, carbon, halogen (fluorine, chlorine, bromine, iodine and astatine), oxygen, sulfur, phosphorus, silicon, nitrogen, boron, selenium, tellurium and noble gases (helium, neon, argon, krypton, xenon and radon) preparation preparations covers synthesis, purification, separation, stabilisation or use of additives, unless a separate place is provided in the classification scheme. zeolites zeolite (i) cystalline aluminosilicates with base-exchange and molecular sieve properties, having three-dimensional [3D], microporous lattice framework structure of tetrahedral oxide units; (ii) compounds isomorphous to those of the former category, wherein the aluminium or silicon atoms in the framework are partly or wholly replaced by atoms of other elements, e.g. by gallium, germanium, phosphorus or boron.

Limiting references

Treatment of inorganic materials to enhance their pigmenting or filling properties; Preparation of carbon black Intentional preparation of carbon dioxide by a fermentation process or the use of an enzyme Preparation of elements or inorganic compounds except carbon dioxide, by a fermentation process or the use of an enzyme Production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis

Application references

Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products

Of 24 combined children, 19 exist in both systems.

5 codes are CPC-only extensions.

Note: 5 CPC extensions are marked as secondary classification only.

12 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • C01B 4/00 Hydrogen isotopes; Inorganic compounds thereof prepared by isotope exchange, e.g. NH3 + D2 → NH2D + HD IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class C01,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 5,794
  2. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 3,286
  3. LG CHEM KR 2,689
  4. BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,669
  5. CENTRAL SOUTH UNIVERSITY 1,531
  6. KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 1,252
  7. SUMITOMO METAL MINING COMPANY JP 1,073
  8. ZHEJIANG UNIVERSITY 1,061
  9. PANASONIC INTELLECTUAL PROPERTY JP 1,058
  10. PANASONIC INTELLECTUAL PROPERTY 1,038

Top Applicants (CPC)

Class C01,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 4,293
  2. LG CHEM KR 3,317
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,219
  4. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 2,154
  5. OMYA INTERNATIONAL CH 1,524
  6. PANASONIC INTELLECTUAL PROPERTY JP 1,362
  7. SAUDI ARABIAN OIL COMPANY SA 1,298
  8. SUMITOMO METAL MINING COMPANY JP 1,286
  9. CENTRAL SOUTH UNIVERSITY 1,243
  10. L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,238