• All sections
• C - Chemistrymetallurgy
• C21D - Modifying the physical structure of ferrous metalsgeneral devices for heat treatment of ferrous or non-ferrous metals or alloysmaking metal malleable, e.g. by decarburisation or tempering
• C21D 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing

Patent holdings for IPC class C21D 8/04

Total number of patents in this class: 666

10-year publication summary

Principal owners for this class