Patents by Inventor Paul J. Tompkins

Paul J. Tompkins 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).

  • COILED ANCHOR FOR SUPPORTING PROSTHETIC HEART VALVE, PROSTHETIC HEART VALVE, AND DEPLOYMENT DEVICE
    Publication number: 20240299160
    Abstract: An anchor for a prosthetic heart valve includes a core, a first cover layer, and a second cover layer. The core includes a plurality of helical turns. One or more outflow turns of the plurality of helical turns has a diameter configured to be disposed on an outflow side of a native valve, and one or more inflow turns of the plurality of helical turns has a diameter configured to be disposed on an inflow side of a native valve. The first cover layer is disposed over and contacts the helical core, and the first cover layer includes a first material. The second cover layer is disposed over and contacts the first cover layer, and the second cover layer includes a second material, which is different than the first material.
    Type: Application
    Filed: May 16, 2024
    Publication date: September 12, 2024
    Inventors: Mark Chau, Alexander J. Siegel, Paul A. Spence, Landon H. Tompkins
  • Variable annular illuminator for photolithographic projection imager
    Patent number: 5757470
    Abstract: The illumination of a photolithographic projection imager is given a variable annular intensity profile by using diverging and counter diverging elements that are movable relative to each other in the illumination path. An upstream element diverges the illumination into an annular configuration, the radius of which is set by the distance downstream to the counter diverging element. Convex and concave conical surfaces on the movable elements can accomplish this.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: May 26, 1998
    Assignee: General Signal Corporation
    Inventors: Paul G. Dewa, Paul F. Michaloski, Paul J. Tompkins, William N. Partlo
  • Variable annular illuminator for photolithographic projection imager
    Patent number: 5452054
    Abstract: The illumination of a photolithographic projection imager is given a variable annular intensity profile by using diverging and counter diverging elements that are movable relative to each other in the illumination path. An upstream element diverges the illumination into an annular configuration, the radius of which is set by the distance downstream to the counter diverging element. Convex and concave conical surfaces on the movable elements can accomplish this.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: September 19, 1995
    Assignee: General Signal Corporation
    Inventors: Paul G. Dewa, Paul F. Michaloski, Paul J. Tompkins, William N. Partlo