• All sections
• H - Electricity
• H01L - Semiconductor devices not covered by class
• H01L 21/301 - Treatment of semiconductor bodies using processes or apparatus not provided for in groups to subdivide a semiconductor body into separate parts, e.g. making partitions

Patent holdings for IPC class H01L 21/301

Total number of patents in this class: 1819

10-year publication summary

Principal owners for this class