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IPC Class
B61

RAILWAYS

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
RAILWAYS

Description

B61 encompasses the design, construction, operation, and maintenance of railway systems and infrastructure. This classification covers railway tracks, rail vehicles (locomotives, carriages, wagons), signalling and safety systems, coupling devices, and associated mechanical and electrical equipment for ground-based rail transport. It includes both conventional railways and specialized rail systems such as rack railways, funicular railways, and monorails, but excludes air-cushion vehicles and magnetic levitation systems which fall under separate transport classifications.

Related Keywords

passenger-carrying AMUSEMENT(S) railways

9 direct subcodes

Child Classifications

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Top Applicants

Top 10 applicants by patent filings, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SIEMENS MOBILITY DE 2,749
  2. CRRC QINGDAO SIFANG COMPANY 2,215
  3. SIEMENS DE 1,941
  4. ALSTOM TRANSPORT TECHNOLOGIES FR 1,514
  5. BYD COMPANY 1,371
  6. CRRC CHANGCHUN RAILWAY VEHICLES COMPANY 1,205
  7. CRRC ZHUZHOU LOCOMOTIVE COMPANY 1,165
  8. CRRC TANGSHAN COMPANY 1,119
  9. BOMBARDIER TRANSPORTATION DE 1,001
  10. SOUTHWEST JIAOTONG UNIVERSITY 958