Patents by Inventor William P. Hammond

William P. Hammond 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).

  • Treatment of vascular graft implants with G-CSF
    Patent number: 5880090
    Abstract: This invention provides methods for enhancing the endothelialization of synthetic vascular grafts by administering to a graft recipient an agent that mobilizes bone marrow-derived CD34.sup.+ cells into the bloodstream, that enhances the adherence to graft surfaces of blood-borne endothelial progenitors, or that stimulates the multiplication of endothelial progenitors that have adhered to the graft surfaces.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: March 9, 1999
    Assignee: The Hope Heart Institute
    Inventors: William P. Hammond, Qun Shi, Moses Hong-De Wu, Errol S. Wijelath
  • Signal responsive automatic control for audio equipment
    Patent number: 4438527
    Abstract: A remote volume control apparatus for audio equipment is operated by the ringing of a telephone to slowly decrease the volume of an audio amplifier during the control's initial operation, maintain the volume at a preselected low volume and slowly increase the volume automatically after the termination of the telephone conversation. In the preferred embodiment, a circuit active indicator also is provided for indicating both proper apparatus operation an activation of the telelphone signal. An attenuation level control also is provided in the form of a switch selector operable to enable the user to preselect a desired attenuation level.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: March 20, 1984
    Inventor: William P. Hammond