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DIFF Subgroup
B66C 11/24

with means for locating or sustaining the loads or trolleys in predetermined positions; Hay hoists

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Trolleys or crabs, e.g. operating above runways > Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear > with means for locating or sustaining the loads or trolleys in predetermined positions; Hay hoists

CPC:

Trolleys or crabs, e.g. operating above runways (runways, tracks or trackways therefor B66C7/00; winch mechanisms B66D) > Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear > with means for locating or sustaining the loads or trolleys in predetermined positions; Hay hoists

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

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  • B66C 11/26 Abutments; Stop blocks; End stops 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