E01C 19/23 Rollers therefor; Such rollers usable also for compacting soil ( E01C19/43, take precedence; specially adapted for agricultural purposes A01B29/00; garden rollers A01G20/35; making or maintaining surfaces of snow or ice E01H4/00; solely for soil compaction E02D3/026)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Rollers therefor; Such rollers usable also for compacting soil
CPC: Rollers therefor; Such rollers usable also for compacting soil ( E01C19/43, take precedence; specially adapted for agricultural purposes A01B29/00; garden rollers A01G20/35; making or maintaining surfaces of snow or ice E01H4/00; solely for soil compaction E02D3/026)
Full Title
Full titles differ between systems:
Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving > for consolidating or finishing laid-down unset materials > Rollers therefor; Such rollers usable also for compacting soil
Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving (surface stabilisation E01C21/00; apparatus specially adapted for reconditioning or repairing paving E01C23/00) > for consolidating or finishing laid-down unset materials ( E01C23/02 take precedence; apparatus for generating vibrations in general B06B) > Rollers therefor; Such rollers usable also for compacting soil ( E01C19/43, take precedence; specially adapted for agricultural purposes A01B29/00; garden rollers A01G20/35; making or maintaining surfaces of snow or ice E01H4/00; solely for soil compaction E02D3/026)
Of 10 combined children, 6 exist in both systems.
4 codes are CPC-only extensions.
6 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E01C 19/24 hand propelled ( E01C19/27 - E01C19/29, take precedence) IPC+CPC Available in IPC and CPC
- E01C 19/25 propelled by animals or vehicles ( , E01C19/26 - E01C19/29 take precedence) +1 CPC IPC+CPC Available in IPC and CPC
- E01C 19/26 self-propelled or fitted to road vehicles ( , E01C19/27 - E01C19/29 take precedence) +4 CPC IPC+CPC Available in IPC and CPC
- E01C 19/27 with elastically-deformable rolling elements, e.g. pneumatic tyres ( ; vibrating or impacting E01C19/28) IPC+CPC Available in IPC and CPC
- E01C 19/28 Vibrated rollers or rollers subjected to impacts, e.g. hammering blows ( E01C19/29, take precedence; ) +6 CPC IPC+CPC Available in IPC and CPC
- E01C 19/29 Rolling apparatus adapted to apply a rolling pressure less than its weight, e.g. roller finishers travelling on formrail IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class E01,2013–2023, worldwide · Source: EPO PATSTAT
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 998
- CATERPILLAR PAVING PRODUCTS US 937
- CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 869
- WIRTGEN DE 740
- CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 685
- CHANG AN UNIVERSITY 615
- CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 613
- SOUTHEAST UNIVERSITY 562
- TONGJI UNIVERSITY 500
- ROAD & BRIDGE INTERNATIONAL COMPANY 491