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
- B63B 2221/20 Joining substantially rigid elements together by means that allow one or more degrees of freedom, e.g. hinges, articulations, pivots, universal joints, telescoping joints, elastic expansion joints, not otherwise provided for in this class
Top Applicants
Top 10 applicants by patent filingsfor class B63, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG HEAVY INDUSTRIES KR 4,830
- DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,093
- HYUNDAI HEAVY INDUSTRIES COMPANY KR 2,639
- GAZ TRANSPORT ET TECHNIGAZ FR 1,037
- SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 827
- HARBIN ENGINEERING UNIVERSITY 811
- GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 808
- HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 784
- YAMAHA MOTOR COMPANY JP 731
- THYSSEN KRUPP DE 727