CPC Main Group Additional Only
C04B 2111/00 Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
Filing statistics
CPC C04B 2111/00 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
25 direct subcodes
Child Classifications
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- C04B 2111/10 Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
- C04B 2111/20 Resistance against chemical, physical or biological attack
- C04B 2111/30 Nailable or sawable materials
- C04B 2111/32 Expansion-inhibited materials
- C04B 2111/34 Non-shrinking or non-cracking materials
- C04B 2111/40 Porous or lightweight materials
- C04B 2111/50 Flexible or elastic materials
- C04B 2111/52 Sound-insulating materials
- C04B 2111/54 Substitutes for natural stone, artistic materials or the like
- C04B 2111/56 Compositions suited for fabrication of pipes, e.g. by centrifugal casting, or for coating concrete pipes
- C04B 2111/60 Flooring materials
- C04B 2111/70 Grouts, e.g. injection mixtures for cables for prestressed concrete
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