Patents by Inventor Daniel Goswami

Daniel Goswami has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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
  • METAL RECOVERY
    Publication number: 20160304989
    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: Application
    Filed: July 2, 2014
    Publication date: October 20, 2016
    Applicant: Alpha Metals, Inc.
    Inventors: Narahari Pujari, Siuli Sarkar, Bawa Singh, Daniel Goswami