- All sections
- C - Chemistrymetallurgy
- C01D - Compounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium
- C01D 5/14 - Preparation of sulfites
Patent holdings for IPC class C01D 5/14
Total number of patents in this class: 37
10-year publication summary
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