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IPC Subgroup
B63B 23/66

Blocks; Chocks

Introduced: September 1968

Last revised: January 2006

Full Title

Equipment for handling lifeboats or the like > Fastening or storing of boats on deck > Blocks; Chocks

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
Subclass:
SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING

Additional Content

Block A support for facilitating storage of boats, typically matching the boat’s hull shape. Chock Chocks A pad, packing or bedding typically from wood or an elastomeric material, used for distributing localised loads acting on a boat’s or ship’s hull, e.g. from struts or shores ; a wooden support upon which a boat rests when stowed on a vessel, e.g. on the vessel’s deck

1 direct subcode

Child Classifications

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Top Applicants

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

  1. SAMSUNG HEAVY INDUSTRIES KR 5,719
  2. DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,684
  3. HYUNDAI HEAVY INDUSTRIES COMPANY KR 3,015
  4. ZHEJIANG OCEAN UNIVERSITY 1,359
  5. HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 1,221
  6. HARBIN ENGINEERING UNIVERSITY 1,175
  7. SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 1,129
  8. CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY 1,113
  9. GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 1,073
  10. JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY 963