Patents by Inventor Dolores Pazos

Dolores Pazos 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 for the preparation of viscous hydrocarbon in aqueous buffer solution emulsions
    Patent number: 5603864
    Abstract: A method for forming a stable bimodal emulsion comprises admixing a viscous hydrocarbon with an aqueous buffer solution under controlled conditions so as to obtain a first monomodal emulsion having an average hydrocarbon droplet size of less than 5 microns. The monomodal emulsion is thereafter diluted with water and additional viscous hydrocarbon is admixed with the diluted monomodal emulsion under a second mixing energy sufficient to produce a bimodal emulsion wherein the average small hydrocarbon droplet size is less than or equal to 5 microns and the average large hydrocarbon droplet size is less than or equal to about 30 microns.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: February 18, 1997
    Assignee: Intevep, S.A.
    Inventors: Felix Silva, Hercilio Rivas, Gustavo Nunez, Dolores Pazos