Patents by Inventor Daniele Cristina Almeida Hummel Pimenta Santos

Daniele Cristina Almeida Hummel Pimenta Santos 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).

  • Method to improve the cleaner froth flotation process
    Patent number: 7360656
    Abstract: The present invention provides a method to improve the cleaner froth flotation process for the selective separation of ore values including, for example, copper, zinc, molybdenum, iron and mixtures there of, in existing flotation plants comprising the step of adding one or more acrylic acid polymers and copolymers to the cleaner froth flotation step in a standard multistep flotation process.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: April 22, 2008
    Assignee: Rohm and Haas Company
    Inventor: Daniele Cristina Almeida Hummel Pimenta Santos