• All sections
• C - Chemistrymetallurgy
• C01B - Non-metallic elementscompounds thereof
• C01B 33/035 - Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by decomposition or reduction of gaseous or vaporised silicon compounds in the presence of heated filaments of silicon, carbon or a refractory metal, e.g. tantalum or tungsten, or in the presence of heated silicon rods on which the formed silicon is deposited, a silicon rod being obtained, e.g. Siemens process

Patent holdings for IPC class C01B 33/035

Total number of patents in this class: 319

10-year publication summary

Principal owners for this class