E01F ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
Introduced: September 1968
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- Subclass:
- ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
Description
E01F covers supplementary construction and equipment installations associated with roads, railways, and similar infrastructure. This includes platforms, helicopter landing areas, directional or informational signs, snow barriers, and comparable auxiliary structures that enhance functionality or safety of transportation routes. The classification encompasses both the design and construction methods for these ancillary works, as distinct from the primary road or railway structures covered by E01B-E01D. It applies to fixed installations that are integral to the operational use of transportation infrastructure rather than vehicles or temporary equipment.
Filing statistics
IPC subclass E01F recorded 121,402 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,916 in 2013 to 15,674 in 2023 (+300%), peaking at 18,561 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
9 direct subcodes
Child Classifications
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- E01F 1/00 Construction of platforms or refuge islands
- E01F 11/00 Embedding pads or other sensitive devices in paving or other road surfaces
- E01F 13/00 Arrangements for obstructing or restricting traffic, e.g. gates, barricades
- E01F 15/00 Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F 3/00 Landing stages for helicopters, e.g. located above buildings
- E01F 5/00 Draining the sub-base of roads or ballastway of railways by trenches, culverts, or conduits
- E01F 7/00 Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements
- E01F 8/00 Arrangements for absorbing or reflecting air transmitted noise from road or railway traffic
- E01F 9/00 Arrangement of road signs or traffic signals; Arrangements for enforcing caution
Top Applicants
Top 10 applicants by patent filingsfor class E01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 2,096
- CHANG AN UNIVERSITY 1,878
- ROAD & BRIDGE INTERNATIONAL COMPANY 1,796
- CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 1,493
- CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 1,327
- CCCC FIRST HIGHWAY ENGINEERING GROUP COMPANY 1,133
- CCCC SECOND HARBOUR ENGINEERING COMPANY 1,029
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 935
- TONGJI UNIVERSITY 899
- CATERPILLAR PAVING PRODUCTS US 868