Patents by Inventor Darren Makeiff

Darren Makeiff 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).

  • Carrier resins with improved relative humidity sensitivity
    Patent number: 9069275
    Abstract: The disclosure generally describes carrier resins, and in particular, resins used for carrier coatings which include at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the cyclic ring structure. Carriers having such resins in the coating exhibit high charge and excellent relative humidity (RH) sensitivity of charge to changing environmental conditions.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: June 30, 2015
    Assignees: XEROX CORPORATION, NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Richard P. Veregin, Qingbin Li, Andriy Kovalenko, Sergey Gusarov, Darren Makeiff, Valerie Farrugia, Michael S. Hawkins
  • CARRIER RESINS WITH IMPROVED RELATIVE HUMIDITY SENSITIVITY
    Publication number: 20140302435
    Abstract: The disclosure generally describes carrier resins, and in particular, resins used for carrier coatings which include at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the cyclic ring structure. Carriers having such resins in the coating exhibit high charge and excellent relative humidity (RH) sensitivity of charge to changing environmental conditions.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 9, 2014
    Applicants: National Research Council of Canada ("NRC"), XEROX CORPORATION
    Inventors: RICHARD P. VEREGIN, Qingbin Li, Andriy Kovalenko, Sergey Gusarov, Darren Makeiff, Valerie Farrugia, Michael S. Hawkins