Patents by Inventor Sergio Villa

Sergio Villa 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).

  • Patent number: 4164548
    Abstract: The invention relates to a method for the treatment of industrial effluent gases for the removal of sulphur dioxide, according to which the gases are contacted with an absorbing solution, containing alkali metal sulphite and bisulphite, the solution, before the contact stage, being pre-treated with air or other gas inert to the solution, preferably a gas devoid of oxygen, whereby the SO.sub.2 partial pressure of the solution is reduced, thus enhancing the SO.sub.2 removal from said effluent gases.
    Type: Grant
    Filed: January 20, 1978
    Date of Patent: August 14, 1979
    Assignee: "Il Gas Interale" S.p.A.
    Inventors: Roberto Vitali, Sergio Villa, Costante Lotti
  • Patent number: D594523
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: June 16, 2009
    Inventors: Seth Uriah Uhrig, Sergio Villa