Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Main Group
B07B 1/00

Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like

Introduced: September 1968

Of 11 combined children, 10 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

  • B07B 1/005 CPC only CPC only
  • B07B 1/02 Hand screens IPC+CPC Available in IPC and CPC
  • B07B 1/04 Stationary flat screens IPC+CPC Available in IPC and CPC
  • B07B 1/06 Cone or disc shaped screens IPC+CPC Available in IPC and CPC
  • B07B 1/08 Screens rotating within their own plane IPC+CPC Available in IPC and CPC
  • B07B 1/10 Screens in the form of endless moving bands IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B07,2013–2023, worldwide · Source: EPO PATSTAT

  1. ANHUI JIEXUN OPTOELECTRONIC TECHNOLOGY COMPANY 444
  2. HENAN WINNER VIBRATING EQUIPMENT COMPANY 386
  3. DERRICK CORPORATION US 370
  4. SOLYSTIC FR 359
  5. XINXIANG ZHEN YING MACHINERY EQUIPMENT COMPANY 347
  6. ANHUI UNIVERSITY OF SCIENCE & TECHNOLOGY 288
  7. CHINA UNIVERSITY OF MINING AND TECHNOLOGY 269
  8. CHINA TOBACCO HENAN INDUSTRIAL 230
  9. KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 230
  10. XINXIANG GAOFU MACHINERY COMPANY 229

Top Applicants (CPC)

Class B07,2013–2023, worldwide · Source: EPO PATSTAT

  1. DERRICK CORPORATION US 427
  2. SOLYSTIC FR 370
  3. M-I SWACO US 223
  4. SATAKE CORPORATION JP 190
  5. ANHUI JIEXUN OPTOELECTRONIC TECHNOLOGY COMPANY 186
  6. SIEMENS DE 175
  7. UNITED STATES POSTAL SERVICE US 158
  8. ANHUI UNIVERSITY OF SCIENCE & TECHNOLOGY 156
  9. UNITEC IT 150
  10. XINXIANG ZHEN YING MACHINERY EQUIPMENT COMPANY 149