Patents by Inventor John T. MacDonald

John T. MacDonald 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).

  • Methods for using improved urea hydrochloride compositions
    Patent number: 8580047
    Abstract: A composition including HCl, urea, complex substituted keto-amine-hydrochloride, an alcohol, an ethoxylate, and a ketone is provided for performing hydraulic fracturing or oil or gas wells, solubilizing calcium carbonate, or lowering salt and bicarbonate levels in irrigation systems.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: November 12, 2013
    Assignee: Green Products & Technologies, LLC
    Inventor: John T. MacDonald
  • Composition for removing cementitious material from a surface and associated methods
    Patent number: 8163102
    Abstract: A composition is provided for use in cleaning a surface of a cementitious material. The composition includes HCI, urea, complex substituted keto-amine-hydrochloride, an alcohol, an ethoxylate, and a ketone. A method of using the composition includes applying the composition to a surface from which it is desired to clean a cementitious material and removing the composition and released cementitious material from the surface. Methods are also provided for performing hydraulic fracturing of an oil or a gas well; for adjusting a pH of a drilling fluid; for adjusting and maintaining a pH of a process fluid; for solubilizing calcium carbonate in an aqueous suspension or dispersion of calcium carbonate; for removing a foulant in a fluid-handling element; adjusting a pH and lowering a salt level of turf.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: April 24, 2012
    Assignee: Green Products & Technologies, LLC
    Inventor: John T. MacDonald
  • Foldable farm implement with single port hopper-feeding auger
    Patent number: 4368003
    Abstract: A front foldable farm implement and hopper-feeding auger comprising an elongated hopper-supporting frame in three separable sections in end-to-end relation. A drawbar is secured to and transversely extends from the central portion of the intermediate section. First means pivotally connects the opposite ends of this central portion to the adjacent ends of the outboard sections, respectively, whereby the outboard sections may be pivoted between a first position in which the three sections are aligned and a second position in which the outboard sections are generally parallel to the drawbar. A plurality of hoppers is carried by the sections. An elongated tubular conveyor in two separable length portions is carried by the two outboard sections, respectively, these length portions being disposed above and in feeding registry with the hoppers. Further, the conveyor extends parallel to the frame sections when the outboard sections are in the first position.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: January 11, 1983
    Inventor: John T. MacDonald