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IPC Subgroup
B66C 11/26

Abutments; Stop blocks; End stops

Introduced: September 1968

Last revised: January 2006

Full Title

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 > Abutments; Stop blocks; End stops

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
HOISTING; LIFTING; HAULING
Subclass:
CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES

Related Keywords

BUFFER(S) -stops for cranesSTOP(S) for cranes or crane trolleys

Top Applicants

Top 10 applicants by patent filingsfor 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