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IPC Subclass
B61B

RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR

Introduced: September 1968

Last revised: January 1985

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
RAILWAYS
Subclass:
RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR

Description

B61B covers railway systems and associated equipment that do not fit within more specific railway classifications. This subclass encompasses auxiliary systems, infrastructure components, and integrated railway arrangements not classified elsewhere in B61, such as rail-mounted structures, railway-based transportation networks, and supporting mechanical systems. It serves as a residual classification for railway technology that falls outside the scope of dedicated subclasses for locomotives (B61C), rolling stock (B61D), track construction (B61F), or signaling and safety systems (B61L). Applications include comprehensive railway system designs, specialized railway equipment, and integrated solutions combining multiple railway technologies.

Additional Content

Devices specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material

Related Keywords

CARRIER(S) as conveyers or conveyer partsCONVEYER(S) of railway typeRAILWAY(S),RAILROAD(S) systemsSAFETY devices for rope railwaysSIDINGSTRAMWAY systems

10 direct subcodes

Child Classifications

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  • B61B 11/00 Ski-lift, sleigh-lift or like trackless systems with guided towing cables only
  • B61B 15/00 Combinations of railway systems
  • B61B 9/00 Tramway or funicular systems with rigid track and cable traction

Top Applicants

Top 10 applicants by patent filingsfor class B61, 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