Air supply (for diving masks B63C11/14, B63C11/16; respiratory apparatus in general A62B)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Air supply

CPC: Air supply (for diving masks B63C11/14, B63C11/16; respiratory apparatus in general A62B)

Full Title

Full titles differ between systems:

IPC:

Equipment for dwelling or working under water; Means for searching for underwater objects > Divers' equipment > Air supply

CPC:

Equipment for dwelling or working underwater; Means for searching for underwater objects (composition of chemical substances for use in breathing apparatus A62D9/00; swimming aids or equipment A63B31/00 - A63B35/00; submarines B63G8/00) > Divers' equipment > Air supply (for diving masks B63C11/14, B63C11/16; respiratory apparatus in general A62B)

CPC subdivides this area 3x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

Child Classifications

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B63C 11/184 CPC only CPC only
B63C 11/186 CPC only CPC only
B63C 11/20 from water surface +2 CPC IPC+CPC Available in IPC and CPC
B63C 11/22 carried by diver +8 CPC IPC+CPC Available in IPC and CPC
B63C 2011/182 2nd only CPC only CPC only
B63C 2011/188 2nd only CPC only CPC only

Top Applicants

Top Applicants (IPC)

Class B63,2013–2023, worldwide · Source: EPO PATSTAT

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

Top Applicants (CPC)

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