Patents by Inventor Walter Stevens

Walter Stevens 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).

  • Occlusive implants for hollow anatomical structures, delivery systems, and related methods
    Patent number: 9119948
    Abstract: An implant and delivery system including a female coupler at a proximal end of the implant and a male coupler at a distal end of an elongate tubular delivery member. The male coupler is insertable within the female coupler and expandable under the influence of an elongate control member that is slidable within the tubular delivery member. Expansion of the male coupler locks the implant to the tubular delivery member. Withdrawal of the control member unlocks the implant from the tubular delivery member, enabling placement of the implant within a body.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: September 1, 2015
    Assignee: Covidien LP
    Inventors: Stephen Lee, Walter Stevens
  • OCCLUSIVE IMPLANTS FOR HOLLOW ANATOMICAL STRUCTURES, DELIVERY SYSTEMS, AND RELATED METHODS
    Publication number: 20140236127
    Abstract: An implant arid delivery system including a female coupler at a proximal end of the implant and a male coupler at a distal end of an elongate tubular delivery member. The male coupler is insertable within the female coupler and expandable under the influence of an elongate control member that is slidable within the tubular delivery member. Expansion of the male coupler locks the implant to the tubular delivery member. Withdrawal of the control member unlocks the implant from the tubular delivery member, enabling placement of the implant within a body.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 21, 2014
    Applicant: COVIDIEN LP
    Inventors: Stephen Lee, Walter Stevens
  • Chain saw sharpener with built-up grinding tool
    Patent number: 5156071
    Abstract: A sharpening tool has a flat central portion circular plate to which is affixed circumferential abrasive bead having convex profile and formed of an abrasive grit bonded by epoxy to the plate. The tool is less wide than the spacing between the depth gauge and the cutting tooth of a chain saw blade and is mounted to a motor which is pivotal on a frame to bring the sharpening tool into position between the depth gauge and the cutting tool. The sharpening tool may then be urged against the cutting tooth to cut a desired tooth profile.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: October 20, 1992
    Inventor: Walter Stevens