Patents by Inventor Angelo Del Prete

Angelo Del Prete 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).

  • Process for the sterilization of sewer systems and closed rooms in general
    Patent number: 6482359
    Abstract: The present invention relates to a process for the sterilization of sewer systems and other closed rooms consisting in the introduction and retention of a mixture of nitrogen and carbon dioxide—in gaseous, liquid or solid state—in a sealed environment.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: November 19, 2002
    Inventor: Angelo Del Prete
  • Process for the sterilisation of sewer systems and closed rooms in general
    Publication number: 20020031441
    Abstract: The present invention relates to a process for the sterilization of sewer systems and other closed rooms consisting in the introduction and retention of a mixture of nitrogen and carbon dioxide—in gaseous, liquid or solid state—in a sealed environment.
    Type: Application
    Filed: May 31, 2001
    Publication date: March 14, 2002
    Inventor: Angelo Del Prete