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DIFF Subgroup
B01J 3/06

Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies (B01J3/04 takes precedence)

Introduced: July 1974

Title

Titles differ between systems:

IPC: Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies

CPC: Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies (B01J3/04 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor > Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies

CPC:

Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor (pressure vessels for containing or storing compressed, liquefied or solidified gases F17C) > Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies (B01J3/04 takes precedence)

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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  • B01J 3/062 CPC only CPC only
  • B01J 3/08 Application of shock waves for chemical reactions or for modifying the crystal structure of substances since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 16,893
  2. CHINESE ACADEMY OF SCIENCES 11,733
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 3,898
  4. LG CHEM KR 3,367
  5. PETROCHINA COMPANY 3,224
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,042
  7. ZHEJIANG UNIVERSITY 2,890
  8. MANN + HUMMEL DE 2,740
  9. JOHNSON MATTHEY GB 2,534
  10. SAUDI ARABIAN OIL COMPANY SA 2,527

Top Applicants (CPC)

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 10,345
  2. CHINESE ACADEMY OF SCIENCES 8,352
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,134
  4. LG CHEM KR 4,290
  5. SAUDI ARABIAN OIL COMPANY SA 3,444
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,417
  7. DOW GLOBAL TECHNOLOGIES US 3,195
  8. MANN + HUMMEL DE 2,822
  9. JOHNSON MATTHEY GB 2,802
  10. UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,737