Patents by Inventor Hector C. Fernandez

Hector C. Fernandez 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).

  • Activator-frother composition
    Patent number: 5389274
    Abstract: An activator-frother composition of good selectivity which can be used as additional reagent for the flotation of minerals of finely ground sulfide type and as sole reagent in the treatment of flotation tailings, which consists of about 1% to 10% by weight of pine oil, about 10% to 30% by weight of sodium sulfide, about 20% to 40% by weight of sodium bicarbonate. The composition has the advantage of requiring little time of homogenization and conditioning in order to be sufficiently soluble, to be stable within a wide pH range, and not to be contaminating.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: February 14, 1995
    Assignee: Hecu S.A.
    Inventor: Hector C. Fernandez