Patents by Inventor Devon C. Campbell

Devon C. Campbell 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).

  • Slide aqueous volume controlling apparatus
    Patent number: 6472217
    Abstract: Apparatus and methods for controlling the fluid on a slide are provided. Fluid reduction is accomplished by directing stream(s) of fluid at an edge of the slide, the streams of fluid being at an angle with the slide of less than 90°. The surface tension at the edge of the slide is broken by the stream(s). And, the fluid which is on the slide is drawn or pulled by the streams of liquid, thereby reducing the fluid on the slide to a reproducible, consistent level.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: October 29, 2002
    Assignee: Ventana Medical Systems, Inc.
    Inventors: William L. Richards, Devon C. Campbell