Patents by Inventor Frederick C. Avelar

Frederick C. Avelar 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).

  • Fire-retardant composition
    Patent number: 5071478
    Abstract: A coating composition suitable for application to a substrate for curing thereon to form a fire-retardant coating, comprising in combination an aqueous emulsion containing a mixture of sulfate of ammonia, hydrate alumina and zinc borate. The dry weight of the mixture is in the range between 35 to 45 parts to one hundred parts of the composition. The dry weight ratio of sulfate of ammonia to hydrated alumina in the mixture is not less than 4.5 to 1. The dry weight ratio of hydrated alumina to zinc borate in the mixture is about equal.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: December 10, 1991
    Inventor: Frederick C. Avelar