Patents by Inventor Luis P. Lorenzo

Luis P. Lorenzo 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 recovery of germanium from solutions that contain it
    Patent number: 4886648
    Abstract: Process for the recovery of germanium from solutions that contain it, in particular from solutions diluted by the addition of tartaric acid and extraction with an organic solution of a tertiary amine. In the reextraction with sodium hydroxide there is obtained a concentrate of germanium.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: December 12, 1989
    Assignee: Asturiana De Zinc, S.A.
    Inventors: Francisco J. S. Menendez, Fernando M. S. Menendez, Antonio De La Cuadra Herrera, Francisco A. Tamargo, Luis P. Lorenzo, Matias R. Valcarcel, Vicente A. Fernandez