Patents by Inventor Richard Lewis Columbus

Richard Lewis Columbus 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).

  • Blood collection and separation device
    Patent number: 4050451
    Abstract: A device is provided for collecting and separating a two-phase liquid, and comprises a collecting compartment containing a microporous filler where the liquid is deposited, so as to draw the liquid in by capillary action. The compartment is vented to the atmosphere.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: September 27, 1977
    Assignee: Eastman Kodak Company
    Inventor: Richard Lewis Columbus