Patents by Inventor Richard W. Slawson

Richard W. Slawson 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).

  • Hypodermic needle shield
    Patent number: 5312347
    Abstract: A detachable needle assembly is provided with a needle shield supported for telescoping movement on the needle hub, with the sliding-fit surface on which the shield moves being separated by a majority of the cross-section of the hub from the feed passage through the hub, or with the shield being movable over an end portion of the hub on which a cover cap is supported prior to use.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: May 17, 1994
    Inventors: Barbara J. Osborne, Richard W. Slawson