Patents by Inventor Sarah J. Robinson

Sarah J. Robinson 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).

  • Process for the preparation of hydroxy gallium phthalocyanine
    Patent number: 8877018
    Abstract: The present teachings describe a process for converting a HOGaPc Type I polymorph to the HOGaPc Type V polymorph. The process includes obtaining a slurry comprising hydroxy gallium phthalocyanine (HOGaPc) Type I polymorph. The slurry is mixed at a resonant frequency of the slurry by applying a low frequency acoustic field for a time sufficient to convert the HOGaPc Type I polymorph to the HOGaPc Type V polymorph.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: November 4, 2014
    Assignee: Xerox Corporation
    Inventors: Sarah J. Robinson, Marko Saban, Yulin Wang, Sandra J. Gardner, Cuong Vong
  • PROCESS FOR THE PREPARATION OF HYDROXY GALLIUM PHTHALOCYANINE
    Publication number: 20130264188
    Abstract: The present teachings describe a process for converting a HOGaPc Type I polymorph to the HOGaPc Type V polymorph. The process includes obtaining a slurry comprising hydroxy gallium phthalocyanine (HOGaPc) Type I polymorph. The slurry is mixed at a resonant frequency of the slurry by applying a low frequency acoustic field for a time sufficient to convert the HOGaPc Type I polymorph to the HOGaPc Type V polymorph.
    Type: Application
    Filed: April 4, 2012
    Publication date: October 10, 2013
    Applicant: XEROX CORPORATION
    Inventors: Sarah J. Robinson, Marko Saban, Yulin Wang, Sandra J. Gardner, Cuong Vong