Patents by Inventor Roger Earl Gaynor

Roger Earl Gaynor 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).

  • Organoamine stabilized silver nanoparticles and process for producing same
    Patent number: 8834965
    Abstract: Processes for producing organoamine-stabilized silver nanoparticles are disclosed. The processes comprise: (a) forming a solution comprising an organic solvent and a first amount of organoamine; (b) adding silver salt particles to the solution; (c) adding a second amount of organoamine to the solution; (d) adding an organohydrazine to the solution; and (e) reacting the solution to form organoamine-stabilized silver nanoparticles.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: September 16, 2014
    Assignee: Xerox Corporation
    Inventors: Mahya Mokhtari, Marko D. Saban, Roger Earl Gaynor
  • Carboxylic acid stabilized silver nanoparticles and process for producing same
    Patent number: 8460584
    Abstract: Processes for producing carboxylic acid-stabilized silver nanoparticles are disclosed. The processes comprise (a) forming a suspension of silver salt particles in a carboxylic acid; (b) forming a solution of an organohydrazine and a first organic solvent; (c) heating the suspension; (d) adding the solution to the suspension to form a mixture; and (e) reacting the mixture to form carboxylic acid-stabilized silver nanoparticles.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: June 11, 2013
    Assignee: Xerox Corporation
    Inventors: Mahya Mokhtari, Marko Saban, Roger Earl Gaynor
  • ORGANOAMINE STABILIZED SILVER NANOPARTICLES AND PROCESS FOR PRODUCING SAME
    Publication number: 20100203333
    Abstract: Processes for producing organoamine-stabilized silver nanoparticles are disclosed. The processes comprise: (a) forming a solution comprising an organic solvent and a first amount of organoamine; (b) adding silver salt particles to the solution; (c) adding a second amount of organoamine to the solution; (d) adding an organohydrazine to the solution; and (e) reacting the solution to form organoamine-stabilized silver nanoparticles.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 12, 2010
    Applicant: XEROX CORPORATION
    Inventors: Mahya Mokhtari, Marko D. Saban, Roger Earl Gaynor
  • CARBOXYLIC ACID STABILIZED SILVER NANOPARTICLES AND PROCESS FOR PRODUCING SAME
    Publication number: 20100090179
    Abstract: Processes for producing carboxylic acid-stabilized silver nanoparticles are disclosed. The processes comprise (a) forming a suspension of silver salt particles in a carboxylic acid; (b) forming a solution of an organohydrazine and a first organic solvent; (c) heating the suspension; (d) adding the solution to the suspension to form a mixture; and (e) reacting the mixture to form carboxylic acid-stabilized silver nanoparticles.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 15, 2010
    Applicant: XEROX CORPORATION
    Inventors: Mahya Mokhtari, Marko Saban, Roger Earl Gaynor
  • Monoformylated arylamine processes and compounds
    Patent number: 7271290
    Abstract: A process comprising for example reacting a substituted or unsubstituted arylamine or a mixture thereof with a Vilsmeier reagent in a solvent system comprising acetonitrile as a sole solvent or a solvent system comprising acetonitrile and one or more solvents selected from toluene, xylene, chlorobenzene, dichlorobenzene, dichloromethane, 1,2-dichloroethane, or a combination thereof.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: September 18, 2007
    Assignee: Xerox Corporation
    Inventors: Leanne Dawn Murphy, Roger Earl Gaynor