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IPC Subgroup
B65G 23/38

for effecting intermittent movement of belts or chains

Introduced: September 1968

Last revised: January 2006

Full Title

Driving gear for endless conveyors; Belt- or chain-tensioning arrangements > for effecting intermittent movement of belts or chains

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
Subclass:
TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS

Filing statistics

IPC B65G 23/38 belongs to the parent subclass B65G, which recorded 773,577 patent applications worldwide between 2013 and 2023. Annual filings grew from 27,737 in 2013 to 105,830 in 2023 (+282%), peaking at 107,540 applications in 2020. The most active applicants in class B65 are CANON (3,755 applications), SGCC(STATE GRID CORPORATION OF CHINA) (3,721 applications) and YOSHINO KOGYOSHO COMPANY (3,659 applications).

Source: EPO PATSTAT, worldwide filings

2 direct subcodes

Child Classifications

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  • B65G 23/4 Applications of pawl-and-ratchet mechanisms or Geneva wheels
  • B65G 23/42 Reciprocating members engaging successive abutments on belts or chains

Top Applicants

Top 10 applicants by patent filingsfor 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