Patents by Inventor Don Carroll

Don Carroll 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).

  • Inkjet printing system with ink-efficient font
    Patent number: 6609776
    Abstract: A customized font based on fixed font cells having certain non-printable pixels along its perimeter, and formed by a pixel grid having a higher dpi horizontal resolution as compared to its vertical resolution. By preventing any marking dots on adjacent pixels in a given row, a minimal amount of ink drops can be used to print digitized characters, and higher throughput is obtained by using a printhead having a nozzle pitch which is the same as the vertical print resolution, and which has a swath width which allows a complete row of character cells to be printed in a single pass of the printhead across the media.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: August 26, 2003
    Assignee: Hewlett-Packard Company
    Inventors: Eric L. Ames, Reece D. Theobald, Don Carroll
  • Inkjet printing system with ink-efficient font
    Publication number: 20020175964
    Abstract: A customized font based on fixed font cells having certain non-printable pixels along its perimeter, and formed by a pixel grid having a higher dpi horizontal resolution as compared to its vertical resolution. By preventing any marking dots on adjacent pixels in a given row, a minimal amount of ink drops can be used to print digitized characters, and higher throughput is obtained by using a printhead having a nozzle pitch which is the same as the vertical print resolution, and which has a swath width which allows a complete row of character cells to be printed in a single pass of the printhead across the media.
    Type: Application
    Filed: May 24, 2001
    Publication date: November 28, 2002
    Inventors: Eric L. Ames, Reece Theobald, Don Carroll
  • Drink holder
    Patent number: D441614
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: May 8, 2001
    Inventor: Don Carroll
  • Bag filler nozzle
    Patent number: D796001
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: August 29, 2017
    Inventor: Don Carroll