Patents by Inventor Oswald Rendon-Herrero

Oswald Rendon-Herrero 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).

  • Sealing method for the treatment of portland cement concrete
    Patent number: 5226279
    Abstract: Dry powdered montmorillonite clay particles are thoroughly and vigorously mixed with water to form a suspension. The suspension is then spread over a concrete slab or the like and allowed to seep through any hairline cracks or interconnected pores in the concrete. As the suspension seeps through the cracks and/or pores, the clay particles are gradually filtered out of the suspension and clog or seal the cracks and/or interconnected pores.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: July 13, 1993
    Inventor: Oswald Rendon-Herrero