C04B 35/622 Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
Introduced: January 1995
Full Title
Full titles differ between systems:
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products > Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
Shaped ceramic products characterised by their composition ; Ceramics compositions ( containing free metal bonded to carbides, diamond, oxides, borides, nitrides, silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides other than as macroscopic reinforcing agents C22C); Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products > Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
Additional Content IPC
Glossary
rapid prototyping (RP) rapid prototyping RP RP is a forming method in which resin or powder material is used. RP devices build up a prototype body layer by layer, rapidly generating a three-dimensional [3D] free form. In the ceramic art, two kinds of RP are mainly applied. One is "3D Printing", the other is "Selective Laser Sintering" (see glossary of group ). 3D Printing [3DP] 3D Printing 3DP 3DP is a general forming technique which is also used in the ceramic art, developed from stereolithography. Light-sensitive monomers are polymerised by a laser beam and solidified by gelation in this way. Through the gelation and solidification of an aqueous ceramic slurry, which contains the light-sensitive monomer, a component is built up in layers.
Limiting references
After-treatment of ceramics, e.g. coating or impregnation Articles characterised by particular shape, e.g. linings for casting ladles, tundishes, cups or the like Mechanical features relating to the shaping of clay or other ceramic compositions, e.g. by injection moulding or by slip-casting by applying the material on to a core to form a layer thereon Preparing clay or like ceramic compositions; Producing mixtures containing clay or like ceramic compositions Working stone or stone-like materials Chemical preparations of powders of inorganic compounds
Of 8 combined children, 4 exist in both systems.
4 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- C04B 35/626 Preparing or treating the powders individually or as batches since 1995 +1 CPC IPC+CPC Available in IPC and CPC
- C04B 35/64 Burning or sintering processes (C04B33/32 takes precedence ) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C04,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 2,095
- WUHAN UNIVERSITY OF TECHNOLOGY 1,205
- NGK INSULATORS JP 1,133
- HALLIBURTON ENERGY SERVICES GROUP US 1,049
- SIKA TECHNOLOGY CH 1,041
- GUILIN UNIVERSITY OF TECHNOLOGY 807
- WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY 806
- SOUTHEAST UNIVERSITY 801
- CORNING US 777
- UNITED STATES GYPSUM COMPANY US 739
Top Applicants (CPC)
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