Patents by Inventor Allen G. Lilla

Allen G. Lilla 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).

  • Product and method for forming in situ insoluble metal silicates in wood pores for fire retardation and preservation
    Patent number: 3974318
    Abstract: A method for fire retarding and preserving wood products, paper, cardboard, boxboard, cloth and other porous materials, having a plurality of internal voids, in which a water soluble silicate composition is applied to those porous materials, penetrating into the voids, and the material dried. Thereafter, a water soluble metallic salt composition is applied, also penetrating into the voids and reacting in situ to form a water insoluble metallic silicate with a high degree of water of hydration disposed throughout the voids.
    Type: Grant
    Filed: April 29, 1974
    Date of Patent: August 10, 1976
    Inventor: Allen G. Lilla