CPC Main Group Additional Only
C04B 2103/00 Function or property of ingredients for mortars, concrete or artificial stone
Filing statistics
CPC C04B 2103/00 belongs to the parent subclass C04B, which recorded 228,252 patent applications worldwide between 2013 and 2023. Annual filings grew from 10,861 in 2013 to 20,066 in 2023 (+85%), peaking at 27,356 applications in 2018. The most active applicants in class C04 are HALLIBURTON ENERGY SERVICES GROUP (2,158 applications), CHINESE ACADEMY OF SCIENCES (1,569 applications) and NGK INSULATORS (1,504 applications).
Source: EPO PATSTAT, worldwide filings
23 direct subcodes
Child Classifications
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- C04B 2103/10 Accelerators; Activators
- C04B 2103/20 Retarders
- C04B 2103/30 Water reducers, plasticisers, air-entrainers, flow improvers
- C04B 2103/40 Surface-active agents, dispersants
- C04B 2103/42 Pore formers
- C04B 2103/44 Thickening, gelling or viscosity increasing agents
- C04B 2103/46 Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents
- C04B 2103/48 Foam stabilisers
- C04B 2103/50 Defoamers, air detrainers
- C04B 2103/52 Grinding aids; Additives added during grinding
Top Applicants
Top 10 applicants by patent filingsfor class C04, 2013–2023, worldwide · Source: EPO PATSTAT
- HALLIBURTON ENERGY SERVICES GROUP US 2,158
- CHINESE ACADEMY OF SCIENCES 1,569
- NGK INSULATORS JP 1,504
- SIKA TECHNOLOGY CH 1,181
- CORNING US 974
- WUHAN UNIVERSITY OF TECHNOLOGY 926
- UNITED STATES GYPSUM COMPANY US 882
- GE (GENERAL ELECTRIC COMPANY) US 828
- MITSUBISHI MATERIALS CORPORATION JP 792
- SAUDI ARABIAN OIL COMPANY SA 686