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DIFF Subgroup
B65G 21/20

Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces (arrangements for supporting belts B65G15/60; rollers or roller arrangements B65G39/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces

CPC: Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces (arrangements for supporting belts B65G15/60; rollers or roller arrangements B65G39/00)

Full Title

Full titles differ between systems:

IPC:

Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors > Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces

CPC:

Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors > Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces (arrangements for supporting belts B65G15/60; rollers or roller arrangements B65G39/00)

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

Child Classifications

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  • B65G 21/22 Rails or the like engaging sliding elements or rollers attached to load-carriers or traction elements IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B65,2013–2023, worldwide · Source: EPO PATSTAT

  1. CANON 3,755
  2. SGCC(STATE GRID CORPORATION OF CHINA) 3,721
  3. YOSHINO KOGYOSHO COMPANY 3,659
  4. DNP (DAINIPPON PRINTING COMPANY) 3,573
  5. KRONES DE 3,114
  6. P&G (PROCTER & GAMBLE COMPANY) US 2,777
  7. TOPPAN PRINTING COMPANY 2,720
  8. SEIKO EPSON CORPORATION 2,574
  9. KYOCERA DOCUMENT SOLUTIONS 2,371
  10. RICOH COMPANY 2,349

Top Applicants (CPC)

Class B65,2013–2023, worldwide · Source: EPO PATSTAT

  1. P&G (PROCTER & GAMBLE COMPANY) US 3,369
  2. KRONES DE 3,304
  3. TETRA LAVAL HOLDINGS & FINANCE CH 2,227
  4. CANON JP 2,051
  5. AUTOSTORE TECHNOLOGY NO 1,731
  6. GPI (GRAPHIC PACKAGING INTERNATIONAL) US 1,707
  7. CANON 1,693
  8. G.D IT 1,678
  9. MURATA MACHINERY JP 1,664
  10. DAIFUKU COMPANY JP 1,654