Patents by Inventor James A. Mathis

James A. Mathis 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 extinguishing agent and method of use
    Patent number: 9289636
    Abstract: A fire-extinguishing composition has a water-thickening agent and a foaming agent. The fire-extinguishing composition contains less than 10 vol % water. The ratio of water-thickening agent to foaming agent is from 99:1 to 1:99 volume ratio. The composition is in the form of a powder or flake. A method of extinguishing a fire is by applying a mixture of a fire-extinguishing composition and water to a fire, the fire-extinguishing composition having a water-thickening agent and a foaming agent.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: March 22, 2016
    Inventor: James A. Mathis
  • Fire extinguishing agent and method of use
    Publication number: 20120118590
    Abstract: A fire-extinguishing composition has a water-thickening agent and a foaming agent. The fire-extinguishing composition contains less than 10 vol % water. The ratio of water-thickening agent to foaming agent is from 99:1 to 1:99 volume ratio. The composition is in the form of a powder or flake. A method of extinguishing a fire is by applying a mixture of a fire-extinguishing composition and water to a fire, the fire-extinguishing composition having a water-thickening agent and a foaming agent.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 17, 2012
    Inventor: James A. Mathis
  • Afocal lens system
    Publication number: 20030053225
    Abstract: An afocal lens system consists of a first convex/concave lens bonded to a second convex/concave lens, forming a doublet. An incident collimated beam of light will be reduced by a magnification factor upon exiting the afocal lens system as a collimated beam of light. Applications for the present invention include, but are not limited to, serving as an interface between a ferrule array with 1.015-mm center-to-center spacing and a MEMS device with 0.9-mm center-to-center spacing assuming a magnification factor of 1.128 of the afocal lens system.
    Type: Application
    Filed: September 20, 2001
    Publication date: March 20, 2003
    Inventor: James A. Mathis