Patents by Inventor Douglas B. Espenschied

Douglas B. Espenschied 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 agitator
    Patent number: D863887
    Type: Grant
    Filed: June 30, 2018
    Date of Patent: October 22, 2019
    Assignee: Runway Blue, LLC
    Inventors: Kim L. Sorensen, Steven M. Sorensen, Douglas B. Espenschied
  • Flow-through agitator
    Patent number: D866254
    Type: Grant
    Filed: June 30, 2018
    Date of Patent: November 12, 2019
    Assignee: Runway Blue, LLC
    Inventors: Kim L. Sorensen, Steven M. Sorensen, Douglas B. Espenschied
  • Flow-through agitator
    Patent number: D875470
    Type: Grant
    Filed: June 30, 2018
    Date of Patent: February 18, 2020
    Assignee: Runway Blue, LLC
    Inventors: Kim L. Sorensen, Steven M. Sorensen, David O. Meyers, Douglas B. Espenschied
  • Flow-through agitator
    Patent number: D876164
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: February 25, 2020
    Assignee: Runway Blue, LLC
    Inventors: Kim L. Sorensen, Steven M. Sorensen, David O. Meyers, Douglas B. Espenschied
  • Flow-through agitator
    Patent number: D876165
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: February 25, 2020
    Assignee: Runway Blue, LLC
    Inventors: Kim L. Sorensen, Steven M. Sorensen, David O. Meyers, Douglas B. Espenschied