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CPC Subgroup
B66B 17/18

Swinging bridges, e.g. for compensating for differences in level between car or cage and landing

Full Title

Hoistway equipment > Applications of loading and unloading equipment (of general application B65G) > for loading and unloading mining-hoist cars or cages > Swinging bridges, e.g. for compensating for differences in level between car or cage and landing

Top Applicants

Top 10 applicants by patent filingsfor 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