Patents by Inventor Bruce Luttrell

Bruce Luttrell 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).

  • Publication number: 20240189188
    Abstract: Medical devices and methods of use thereof are described. The device may include a body having a housing that defines a lumen, a piston within the housing, and an actuator operably coupled to the piston, wherein the piston is movable along the lumen by operating the actuator. The device also may include a cartridge insertable into the body and/or a flexible fitting configured for direct application to an eye of a subject.
    Type: Application
    Filed: February 16, 2024
    Publication date: June 13, 2024
    Applicant: D&D Biopharmaceuticals, Inc.
    Inventors: Bruce H. DeWOOLFSON, Dale P. DeVORE, Michael LUTTRELL, Chris L. DAVIS
  • Patent number: 11938092
    Abstract: Medical devices and methods of use thereof are described. The device may include a body having a housing that defines a lumen, a piston within the housing, and an actuator operably coupled to the piston, wherein the piston is movable along the lumen by operating the actuator. The device also may include a cartridge insertable into the body and/or a flexible fitting configured for direct application to an eye of a subject.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: March 26, 2024
    Assignee: D&D Biopharmaceuticals, Inc.
    Inventors: Bruce H. DeWoolfson, Dale P. DeVore, Michael Luttrell, Chris L. Davis
  • Patent number: 7022439
    Abstract: A system is provided for fracturing a polygon on a mask layout used in a lithographic process for manufacturing an integrated circuit. The system receives mask layouts that include polygons that may include holes with exit routes near notches either on the outside of the polygon or internal to the hole. A notch is undesirable because fracturing the polygon for printing by the lithographic equipment can create slivers that do not expose well during exposure. The system moves the exit route for a vertex trace so that the exit route passes through a vertex of the notch thereby eliminating the sliver.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: April 4, 2006
    Assignee: Synopsys, Inc.
    Inventor: Bruce Luttrell
  • Patent number: 6887630
    Abstract: A system for fracturing polygons on masks used in lithography processes for manufacturing an integrated circuit is described. The system fractures polygons that include cavities in either the horizontal edges or the vertical edges by examining the aspect ratio (length/width) of prospective slices made at each vertex of the polygon. After determining the aspect ratio of each prospective slice, the system selects the slice with the lowest aspect ratio and slices the polygon into two sub-polygons. Slicing the polygon in this manner effectively eliminates “slivers” or slices with extreme aspect ratios. This process is continued until each sub-polygon is either a rectangle or a trapezoid that can be printed by electron beam photolithography.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: May 3, 2005
    Assignee: Numerical Technologies
    Inventor: Bruce Luttrell
  • Publication number: 20040205686
    Abstract: A system is provided for fracturing a polygon on a mask layout used in a lithographic process for manufacturing an integrated circuit. The system receives mask layouts that include polygons that may include holes with exit routes near notches either on the outside of the polygon or internal to the hole. A notch is undesirable because fracturing the polygon for printing by the lithographic equipment can create slivers that do not expose well during exposure. The system moves the exit route for a vertex trace so that the exit route passes through a vertex of the notch thereby eliminating the sliver.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Inventor: Bruce Luttrell
  • Publication number: 20040205687
    Abstract: A system for fracturing polygons on masks used in lithography processes for manufacturing an integrated circuit is described. The system fractures polygons that include cavities in either the horizontal edges or the vertical edges by examining the aspect ratio (length/width) of prospective slices made at each vertex of the polygon. After determining the aspect ratio of each prospective slice, the system selects the slice with the lowest aspect ratio and slices the polygon into two sub-polygons. Slicing the polygon in this manner effectively eliminates “slivers” or slices with extreme aspect ratios. This process is continued until each sub-polygon is either a rectangle or a trapezoid that can be printed by electron beam photolithography.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Inventor: Bruce Luttrell