Patents by Inventor David Zachariah Block

David Zachariah Block 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).

  • Flow-through brush head
    Patent number: D647308
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: October 25, 2011
    Assignee: Specialty Products of Greenwood, Missouri, Inc.
    Inventors: Jim Joseph Best, David Zachariah Block, William Lauchlin Gulledge, Jr., William Daniel Richardson, Chad Edward Brott, Barbara D. Newman, Melodie Lea Wendleton, Benjamin A. Shobert, Richard S. Dale, Todd Brunner
  • Flow-through extension pole handle
    Patent number: D661905
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: June 19, 2012
    Assignee: Specialty Products of Greenwood, Missouri, Inc.
    Inventors: Jim Joseph Best, David Zachariah Block, William Lauchlin Gulledge, Jr., William Daniel Richardson, Chad Edward Brott, B. Deré Newman, Melodie Lea Wendleton, Benjamin A. Shobert, Richard S. Dale, Todd Brunner