CPC Main Group
C04B 24/00 Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
Filing statistics
CPC C04B 24/00 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
13 direct subcodes
Child Classifications
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- C04B 24/02 Alcohols; Phenols; Ethers
- C04B 24/04 Carboxylic acids; Salts, anhydrides or esters thereof
- C04B 24/08 Fats; Fatty oils; Ester type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
- C04B 24/10 Carbohydrates or derivatives thereof
- C04B 24/12 Nitrogen containing compounds
- C04B 24/16 Sulfur-containing compounds
- C04B 24/24 Macromolecular compounds (C04B24/14 takes precedence; macromolecular compounds comprising sulfonate or sulfate groups C04B24/16)
- C04B 24/40 Compounds containing silicon, titanium or zirconium
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