Patents by Inventor Vera Johnson

Vera Johnson 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).

  • System for separation of a sample
    Patent number: 9957474
    Abstract: A centrifuge layering insert configured for insertion into a centrifuge tube includes a tube having a first open end and a second open end. The centrifuge layering insert also includes a casing having an outer wall, an inner wall, a first open end, and a second substantially closed end. The casing forms an annular space around the tube between the tube first end and the tube second end. The tube has at least a portion of the length extending beyond the first open end of the casing in a direction opposite the second open end of the tube.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: May 1, 2018
    Assignee: Safely Art, LLC
    Inventor: Vera Johnson