Patents Assigned to Alpha Assembly Solution Inc.
  • Metal recovery
    Patent number: 10494696
    Abstract: A method for recovering tin and/or tin alloy from a substrate comprising providing a substrate having tin and/or tin alloy thereon; contacting the tin and/or tin alloy with a stripping solution comprising an inorganic acid and a persulfate compound; recovering tin salt and/or tin alloy salt precipitated from the stripping solution; and recovering tin and/or tin alloy from the tin salt and/or tin alloy salt, respectively.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: December 3, 2019
    Assignee: Alpha Assembly Solution Inc.
    Inventors: Narahari Pujari, Siuli Sarkar, Bawa Singh, Daniel Goswami