Patents by Inventor W. Gregory Sawyer

W. Gregory Sawyer 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: 8979970
    Abstract: Fertilizer granules and methods of producing fertilizer granules. The fertilizer granules are formed from a fertilizer composition, such as a phosphate fertilizer, includes a fibrous material for the purpose of increasing the granule strength preventing or reducing attrition or dusting formation during storage, transport, and/or handling of the fertilizer. Dust formation can be reduced fifty percent or more. The base fertilizer composition can include a phosphate fertilizer, such as monoammonium phosphate (MAP) or diammonium phosphate (DAP), and optionally one or more micronutrients or secondary nutrients, such as elemental sulfur. The fibrous material is pulp or paper sludge, for example.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 17, 2015
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Paul Kucera, W. Gregory Sawyer
  • Patent number: 8728993
    Abstract: A PTFE-based composite material includes a PTFE major phase filled with a metal oxide minor phase. The major phase is intermixed with the metal oxide minor phase, wherein the minor phase includes a plurality of irregularly shaped metal oxide nanoparticles. The irregularly shaped nanoparticles provide substantial reductions in steady state wear rate over otherwise similar nanocomposites. The metal oxide can comprise aluminum oxide.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: May 20, 2014
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: W. Gregory Sawyer, David L. Burris
  • Patent number: 8383561
    Abstract: A PTFE-based composite material includes a PTFE major phase filled with a metal oxide minor phase. The major phase is intermixed with the metal oxide minor phase, wherein the minor phase includes a plurality of irregularly shaped metal oxide nanoparticles. The irregularly shaped nanoparticles provide substantial reductions in steady state wear rate over otherwise similar nanocomposites. The metal oxide can comprise aluminum oxide.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: February 26, 2013
    Assignee: University of Florida Research Foundation, inc.
    Inventors: W. Gregory Sawyer, David L. Burris
  • Publication number: 20120285211
    Abstract: Fertilizer granules and methods of producing fertilizer granules. The fertilizer granules are formed from a fertilizer composition, such as a phosphate fertilizer, includes a fibrous material for the purpose of increasing the granule strength preventing or reducing attrition or dusting formation during storage, transport, and/or handling of the fertilizer. Dust formation can be reduced fifty percent or more. The base fertilizer composition can include a phosphate fertilizer, such as monoammonium phosphate (MAP) or diammonium phosphate (DAP), and optionally one or more micronutrients or secondary nutrients, such as elemental sulfur. The fibrous material is pulp or paper sludge, for example.
    Type: Application
    Filed: March 26, 2012
    Publication date: November 15, 2012
    Inventors: Paul Kucera, W. Gregory Sawyer
  • Patent number: 7790658
    Abstract: A PTFE-based composite material includes a PTFE major phase filled with a metal oxide minor phase. The major phase is intermixed with the metal oxide minor phase, wherein the minor phase includes a plurality of irregularly shaped metal oxide nanoparticles. The irregularly shaped nanoparticles provide substantial reductions in steady state wear rate over otherwise similar nanocomposites. The metal oxide can comprise aluminum oxide.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: September 7, 2010
    Assignee: University of Florida Research Foundaction, Inc.
    Inventors: W. Gregory Sawyer, David L. Burris
  • Publication number: 20040072124
    Abstract: A medical implant or device comprising at least one component at least partially fabricated from an alloy having a composition represented by the general formula Xa Mb Alc, where X is Zr or Hf, M is at least one element selected from the group consisting of Mn, Fe, Co, Ni, Ti and Cu, and a, b and c are, in atomic percentages, 25<a<85, 5<b<70 and 0<c<35, the alloy comprising an amorphous phase as a volume fraction of at least 50%.
    Type: Application
    Filed: December 12, 2003
    Publication date: April 15, 2004
    Inventors: Michael J. Kaufman, W. Gregory Sawyer
  • Patent number: 5406707
    Abstract: A utility knife has a handle providing a cavity and an opening at one end, and a slide seated in the cavity for sliding movement relative to the opening. Supported on the slide is a knife blade which moves therewith between a position within the cavity and a position projecting outwardly of the opening. The blade has a cutting edge extending along its lower edge, and the slide has a side wall against which the blade is disposed and a base wall upon which a portion of the cutting edge is disposed. The slide has a cam portion configured to produce a horizontal force component on the cutting edge portion of the blade when the cutting edge cuts into the base wall as a result of the cutting force applied by the user on the outwardly projecting blade.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: April 18, 1995
    Assignee: The Stanley Works
    Inventors: Robert L. Owens, W. Gregory Sawyer