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DIFF Main Group
C01B 32/00

Carbon; Compounds thereof (C01B21/00, C01B23/00 take precedence; percarbonates C01B15/10; carbon black C09C1/48)

Introduced: January 2017

Title

Titles differ between systems:

IPC: Carbon; Compounds thereof

CPC: Carbon; Compounds thereof (C01B21/00, C01B23/00 take precedence; percarbonates C01B15/10; carbon black C09C1/48)

Full Title

Full titles differ between systems:

IPC:

Carbon; Compounds thereof

CPC:

Carbon; Compounds thereof (C01B21/00, C01B23/00 take precedence; percarbonates C01B15/10; carbon black C09C1/48)

Additional Content IPC

Glossary

fullerene fullerenes molecule composed entirely of carbon in the form of a hollow sphere Buckminster fullerene buckminsterfullerene Buckminster fullerenes buckminsterfullerenes spherical molecule with the formula C 60 endohedral fullerene endohedral fullerenes fullerene comprising an element inserted into the fullerene cage carbon nanotube carbon nanotubes described as graphene sheets rolled up into the shape of a cylinder. The one in which a cylinder is in one layer is a single (monolayer) nanotube (single- walled nanotube, SWNT), and the one in which a cylinder is in two layers is a double-layered nanotube (double-walled nanotube, DWNT), and the one in a structure that the cylinders of several layers or more are arrayed in a nest shape is a multi-layer nanotube (multi-walled nanotube, MWNT). nanoonion nanoonions structure in which a plurality of graphene sheets are closed concentric spherical shell shape nanoscroll nanoscrolls similar to that of a multi-walled carbon nanotube, but with a spiral-like rolled-up geometry and open edges at the ends nanohorn nanohorns described as graphene sheets rolled up into the shape of a cylinder and its tip is closed nanocone nanocones described as graphene sheets made into the shape of a conical structure nanowall nanowalls two-dimensional [2D] structure in which the graphene sheets oriented perpendicular to the substrate active carbon highly adsorptive carbon material with porous structure gaseous activating agent gaseous activating agents gases, such as steam, for use in to develop the pore structure of active carbon non-gaseous activating agent non-gaseous activating agents chemicals, such as zinc chloride, for use in to develop the pore structure of active carbon granulation the methods of preparation of active carbon using carbonaceous precursors per se and binders, e.g. pitch, and producing the granules

Limiting references

Percarbonates Preparation for diamond, by using ultra-high pressure Carbon black Preparation for diamond, by crystal growth

IPC and CPC are identically structured here. All 12 subcodes exist in both systems.

4 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2017.

Child Classifications

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  • C01B 32/05 Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30 since 2017 IPC+CPC Available in IPC and CPC
  • C01B 32/10 Carbon fluorides, e.g. [CF]nor [C2F]n (graphite intercalation thereof C01B32/22) since 2017 IPC+CPC Available in IPC and CPC
  • C01B 32/40 Carbon monoxide since 2017 IPC+CPC Available in IPC and CPC
  • C01B 32/60 Preparation of carbonates or bicarbonates in general (of percarbonates C01B15/10; of specific carbonates or bicarbonates according to the cation C01B-C01G) since 2017 IPC+CPC Available in IPC and CPC
  • C01B 32/80 Phosgene since 2017 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