CM-PATRA / record

(no English title in the source record)

Filed / published / granted
2013-01-30 / 2015-09-18 / n/a
Offices
IN (includes the Indian office)
Applicants
Drinkard Res And Dev Corp (US, foreign-industry)
Minerals
Iron / Steel / Manganese / Chromium (not on list)
Stages
Hydrometallurgy (leaching, solvent extraction)
CPC
C22B47/0063
Abstract (first 170 chars)
An improved method for treating manganese containing materials such as seafloor manganese nodules by leaching with aqueous HNO3 and NO gas and more particularly to method

Why it is labelled this way

Decided by cpc-rules: Matched iron-steel by CPC and text.

Source: Google Patents Public Data (BigQuery), CC BY 4.0.