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CPC Main Group Additional Only
B63B 2221/00

Methods and means for joining members or elements

10 direct subcodes

Child Classifications

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  • B63B 2221/02 by welding
  • B63B 2221/04 by soldering
  • B63B 2221/06 by riveting
  • B63B 2221/08 by means of threaded members, e.g. screws, threaded bolts or nuts
  • B63B 2221/10 using adhesives
  • B63B 2221/12 by means of hook and loop fasteners
  • B63B 2221/14 by means of zippers or the like
  • B63B 2221/16 by means of ties, ribbons or the like
  • B63B 2221/18 by sewing, stitching, stapling or the like methods

Top Applicants

Top 10 applicants by patent filingsfor class B63, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG HEAVY INDUSTRIES KR 4,830
  2. DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,093
  3. HYUNDAI HEAVY INDUSTRIES COMPANY KR 2,639
  4. GAZ TRANSPORT ET TECHNIGAZ FR 1,037
  5. SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 827
  6. HARBIN ENGINEERING UNIVERSITY 811
  7. GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 808
  8. HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 784
  9. YAMAHA MOTOR COMPANY JP 731
  10. THYSSEN KRUPP DE 727