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DIFF Subgroup
B66D 1/60

adapted for special purposes

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Rope, cable, or chain winding mechanisms; Capstans > adapted for special purposes

CPC:

Rope, cable, or chain winding mechanisms; Capstans (portable or mobile lifting or hauling appliances B66D3/00) > adapted for special purposes

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B66D 1/605 CPC only CPC only
  • B66D 1/72 Anchor-chain sprockets; Anchor capstans IPC+CPC Available in IPC and CPC
  • B66D 1/80 for scrapers IPC+CPC Available in IPC and CPC
  • B66D 1/82 for slewing and hoisting by means of derricks IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B66,2013–2023, worldwide · Source: EPO PATSTAT

  1. INVENTIO CH 3,843
  2. OTIS ELEVATOR COMPANY US 3,709
  3. SGCC(STATE GRID CORPORATION OF CHINA) 2,987
  4. KONE CORPORATION FI 2,922
  5. TOSHIBA ELEVATOR COMPANY 2,922
  6. HITACHI 2,321
  7. MITSUBISHI ELECTRIC CORPORATION JP 2,287
  8. MITSUBISHI ELECTRIC CORPORATION 1,870
  9. HITACHI BUILDING SYSTEMS COMPANY 1,700
  10. ANHUI HELI COMPANY 1,325

Top Applicants (CPC)

Class B66,2013–2023, worldwide · Source: EPO PATSTAT

  1. INVENTIO CH 3,939
  2. OTIS ELEVATOR COMPANY US 3,810
  3. KONE CORPORATION FI 3,008
  4. MITSUBISHI ELECTRIC CORPORATION JP 2,333
  5. MITSUBISHI ELECTRIC CORPORATION 1,254
  6. HITACHI 1,195
  7. OTIS ELEVATOR COMPANY 1,065
  8. SGCC(STATE GRID CORPORATION OF CHINA) 961
  9. INVENTIO 828
  10. CROWN EQUIPMENT CORPORATION US 828