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IPC Subgroup
E01D 15/14

Floating bridges, e.g. pontoon bridges

Introduced: September 1968

Last revised: January 2006

Full Title

Movable or portable bridges; Floating bridges > Floating bridges, e.g. pontoon bridges

Classification Context

Section:
FIXED CONSTRUCTIONS
Class:
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Subclass:
BRIDGES

Description

E01D15/14 covers floating bridges, e.g. pontoon bridges, in which the deck is carried by buoyant supports instead of fixed piers. Subject matter includes military and civil pontoon crossings, the coupling and anchoring of floating sections, and arrangements for compensating water-level changes. The group belongs to the movable and portable bridges of E01D15/00. Landing bridges for embarking or disembarking are classified in E01D15/24, and the floating bodies or pontoons themselves in B63B.

Filing statistics

IPC E01D 15/14 belongs to the parent subclass E01D, which recorded 128,907 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,299 in 2013 to 17,552 in 2023 (+308%), peaking at 18,786 applications in 2020. The most active applicants in class E01 are CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY (2,096 applications), CHANG AN UNIVERSITY (1,878 applications) and ROAD & BRIDGE INTERNATIONAL COMPANY (1,796 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

FLOATING bridgesPONTOON(S) bridges

2 direct subcodes

Child Classifications

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  • E01D 15/2 collapsible, expandable, inflatable or the like
  • E01D 15/22 designed as, or mounted on, vehicles

Top Applicants

Top 10 applicants by patent filingsfor class E01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 2,096
  2. CHANG AN UNIVERSITY 1,878
  3. ROAD & BRIDGE INTERNATIONAL COMPANY 1,796
  4. CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 1,493
  5. CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 1,327
  6. CCCC FIRST HIGHWAY ENGINEERING GROUP COMPANY 1,133
  7. CCCC SECOND HARBOUR ENGINEERING COMPANY 1,029
  8. PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 935
  9. TONGJI UNIVERSITY 899
  10. CATERPILLAR PAVING PRODUCTS US 868