C04B 35/64 Burning or sintering processes (C04B33/32 takes precedence )
Introduced: September 1968
Title
Titles differ between systems:
IPC: Burning or sintering processes
CPC: Burning or sintering processes (C04B33/32 takes precedence )
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 > Burning or sintering processes
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 > Burning or sintering processes (C04B33/32 takes precedence )
Additional Content IPC
Glossary
selective laser sintering (SLS) selective laser sintering SLS a layer of ceramic powder is deposited on a support and possibly compacted by a rolling device. A computer-controlled laser beam scans a two-dimensional [2D] cross-section of a part, selectively sintering the layer. A new layer of powder is deposited, compacted and sintered. After completion of the part, the unfused or unsintered powder, which helps hold the part during the process, is removed. This technique may allow local composition variations for gradient materials or manufacture of composites.
Limiting references
Burning methods for clay-wares Furnaces, kilns, ovens or retorts, e.g. chamber type furnaces , e.g. Travelling or movable supports or containers for the charge of furnaces, kilns, ovens, retorts in so far as they are of kinds occurring in more than one kind of furnace
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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- C04B 35/65 Reaction sintering of free metal- or free silicon-containing compositions since 1980 +2 CPC 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