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IPC Main Group
B01J 2/00

Processes or devices for granulating materials, in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Subclass:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

Related Keywords

GRANULATING in generalmaking POWDER in general

12 direct subcodes

Child Classifications

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  • B01J 2/1 in stationary drums or troughs, provided with kneading or mixing appliances
  • B01J 2/12 in rotating drums
  • B01J 2/14 in rotating dishes or pans
  • B01J 2/16 by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
  • B01J 2/18 using a vibrating apparatus
  • B01J 2/2 by expressing the material, e.g. through sieves and fragmenting the extruded length
  • B01J 2/22 by pressing in moulds or between rollers
  • B01J 2/24 Obtaining flakes by scraping a solid layer from a surface
  • B01J 2/26 on endless conveyor belts
  • B01J 2/28 using special binding agents
  • B01J 2/3 using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic

Top Applicants

Top 10 applicants by patent filingsfor 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