CPC Main Group Additional Only
C04B 2103/00 Function or property of ingredients for mortars, concrete or artificial stone
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