Patents by Inventor Bernardo Enrique Del Valle Álvarez

Bernardo Enrique Del Valle Álvarez 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).

  • Additive for special plasters and mortars, compositions containing the additive and utilization of the additive in special plasters and mortars
    Patent number: 6824606
    Abstract: A water retaining additive for conglomerate building materials, free of cellulose-like derivatives, that comprises at least a rheological grade clay, preferably sepiolite, and a modified natural gum such as guar gum, as well as conglomerate compositions that contain the additive, as well as the use of the additive for different constructions materials comprised of gypsum and special mortars are described.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: November 30, 2004
    Assignee: Tolsa, S.A.
    Inventors: Antonio Alvarez Berenguer, Francisco Javier Limpo Orozco, Bernardo Enrique Del Valle Álvarez, Manuel Hidalgo Martín
  • Technological additive for agglomerating projectable building materials and utilization of the additive in projected mortars and concretes
    Patent number: 6572696
    Abstract: New additive for projectable agglomerating materials in the building industry, said additive comprising at least one clay of rheologic grade, preferably sepiolite, a water reducer/fluidifier and an aeration agent, as well as the utilization of said additive as component of projectable agglomerating materials such as mortars and concretes.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: June 3, 2003
    Assignee: Tolsa, S.A.
    Inventors: Antonio Alvarez Berenguer, Francisco Javier Limpo Orozco, Bernardo Enrique Del Valle Álvarez, Manuel Hidalgo Martín