Materials not provided for elsewhere

Filing statistics

CPC C09K 3/00 belongs to the parent subclass C09K, which recorded 266,705 patent applications worldwide between 2013 and 2023. Annual filings grew from 18,457 in 2013 to 21,849 in 2023 (+18%), peaking at 28,968 applications in 2018. The most active applicants in class C09 are LG CHEM (7,954 applications), HALLIBURTON ENERGY SERVICES GROUP (6,584 applications) and NITTO DENKO CORPORATION (6,500 applications).

Source: EPO PATSTAT, worldwide filings

10 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

C09K 3/10 for sealing or packing joints or covers (filling pastes C09D5/34)
C09K 3/12 Materials for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D5/34)
C09K 3/14 Anti-slip materials; Abrasives
C09K 3/16 Anti-static materials
C09K 3/18 for application to surfaces to minimize adherence of ice, mist or water thereto (rendering particulate materials free flowing, in general, e.g. making them hydrophobic B01J2/30); Thawing or antifreeze materials for application to surfaces (used in liquids for heat-transfer, heat-exchange or heat-storage or for the production of heat or cold other than by combustion, e.g. radiator liquids, C09K5/00)
C09K 3/20 as substitutes for glycerol in its non-chemical uses, e.g. as a base in toiletry creams or ointments
C09K 3/22 for dust-laying or dust-absorbing
C09K 3/24 for simulating ice or snow
C09K 3/30 for aerosols (aerosol containers B65D83/14)
C09K 3/32 for absorbing liquids to remove pollution, e.g. oil, gasoline, fat

Top Applicants

Top 10 applicants by patent filingsfor class C09, 2013–2023, worldwide · Source: EPO PATSTAT

LG CHEM KR 7,954
HALLIBURTON ENERGY SERVICES GROUP US 6,584
NITTO DENKO CORPORATION JP 6,500
3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,490
DOW GLOBAL TECHNOLOGIES US 6,324
FUJIFILM JP 5,832
MERCK PATENT DE 5,481
BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,147
SAMSUNG DISPLAY KR 5,105
NITTO DENKO CORPORATION 3,584