CPC Main Group Additional Only
C04B 2201/00 Mortars, concrete or artificial stone characterised by specific physical values
6 direct subcodes
Child Classifications
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- C04B 2201/05 Materials having an early high strength, e.g. allowing fast demoulding or formless casting
- C04B 2201/10 for the viscosity
- C04B 2201/20 for the density
- C04B 2201/30 for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B 2201/40 for gas flow through the material
- C04B 2201/50 for the mechanical strength
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