Patents by Inventor Michael D. Callaway

Michael D. Callaway 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).

  • Patent number: 10843986
    Abstract: A method of this disclosure for removing oxygenates from a hydrocarbon process stream includes passing the hydrocarbon process stream through a vessel containing a mixed metal oxide having an amorphous non-crystalline structure and containing a metal in at least two oxidation states in a hydrate form, the hydrocarbon process stream having a first oxygenate content when entering the vessel and a second lower oxygenate content when exiting the vessel. The hydrocarbon stream may be a gas or a liquid stream.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: November 24, 2020
    Assignee: CALTECH GLOBAL ENTERPRISES, LLC
    Inventors: Michael D. Callaway, William Jay Turner
  • Publication number: 20200017428
    Abstract: A method of this disclosure for removing oxygenates from a hydrocarbon process stream includes passing the hydrocarbon process stream through a vessel containing a mixed metal oxide having an amorphous non-crystalline structure and containing a metal in at least two oxidation states in a hydrate form, the hydrocarbon process stream having a first oxygenate content when entering the vessel and a second lower oxygenate content when exiting the vessel. The hydrocarbon stream may be a gas or a liquid stream.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 16, 2020
    Inventors: Michael D. Callaway, William Jay Turner
  • Patent number: 8759252
    Abstract: The various embodiments of the invention relates to the composition of a hydrogen sulfide capture material and the related method of manufacture. The hydrogen sulfide capture material is formed by solubilizing an iron source in acid to form an aqueous solution comprising iron chloride, neutralizing the aqueous solution with a caustic solution to form a neutralized solution, washing the neutralized solution to separate it into water and a slurry, forming a thickened slurry by removing additional water from the slurry, separating the thickened slurry to produce filtered water and a wet filter cake, and drying the wet filter cake to form granules. The hydrogen sulfide capture material of the present invention removes hydrogen sulfide for a longer time and at a faster rate than the materials of the prior art, thereby improving the efficiency and decreasing the cost of sour gas treatment.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: June 24, 2014
    Assignee: Michael D. and Anita Kaye
    Inventor: Michael D. Callaway
  • Patent number: 4941901
    Abstract: A clip-on retrofit drainage tray or trough is disclosed. The device has a full width tray fitting at the exposed back edge of a window unit or through-the-wall air conditioner, and is located just below the bottom of the sleeve to catch condensate. The dripping water is drained into the trough and out through a drain hole formed in the trough. The trough has an overhead clip attaching on a lip above the sleeve bottom.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: July 17, 1990
    Assignee: U.S. Natural Resources, Inc.,
    Inventors: Rengaswamy Ramakrishnan, Michael D. Callaway