Patents by Inventor Robert T. Hewlett

Robert T. Hewlett 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).

  • SURGICAL MICROSCOPE SYSTEM
    Publication number: 20240012229
    Abstract: A surgical microscope system having a head unit microscope assembly and a foot control assembly in operative communication with the head unit microscope assembly. The head unit microscope assembly being configured to selectively couple to a floor stand assembly such that the that the head unit microscope assembly can be positioned in a desired operative location by the user. The head unit microscope assembly including one or more of: a mounting adaptor, an XY directional stage, a tilt drive, a focus drive; a microscope subassembly, and/or an illumination system.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 11, 2024
    Inventors: Robert T. Hewlett, Jonathan M. Butler
  • Surgical microscope system
    Patent number: 11796784
    Abstract: A surgical microscope system having a head unit microscope assembly and a foot control assembly in operative communication with the head unit microscope assembly. The head unit microscope assembly being configured to selectively couple to a floor stand assembly such that the that the head unit microscope assembly can be positioned in a desired operative location by the user. The head unit microscope assembly including one or more of: a mounting adaptor, an XY directional stage, a tilt drive, a focus drive; a microscope subassembly, and/or an illumination system.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: October 24, 2023
    Inventors: Robert T. Hewlett, Jonathan M. Butler
  • SURGICAL MICROSCOPE SYSTEM
    Publication number: 20230152567
    Abstract: A surgical microscope system having a head unit microscope assembly and a foot control assembly in operative communication with the head unit microscope assembly. The head unit microscope assembly being configured to selectively couple to a floor stand assembly such that the that the head unit microscope assembly can be positioned in a desired operative location by the user. The head unit microscope assembly including one or more of: a mounting adaptor, an XY directional stage, a tilt drive, a focus drive; a microscope subassembly, and/or an illumination system.
    Type: Application
    Filed: November 11, 2022
    Publication date: May 18, 2023
    Inventors: Robert T. Hewlett, Jonathan M. Butler
  • Stereoscopic beam splitter
    Patent number: 8970959
    Abstract: According to certain embodiments, a system includes beamsplitter sets, where each beamsplitter set comprises a first beamsplitter module and a second beamsplitter module aligned with the first beamsplitter module. The first beamsplitter module receives a first beam traveling along a first optical path. The first beamsplitter module splits the first beam into a first output beam transmitted along the first optical path and a first split beam transmitted to the second beamsplitter module along a reflected beam path. The second beamsplitter module receives the first split beam. The second beamsplitter module splits the first split beam into a second output beam transmitted substantially parallel to the reflected beam path and a second split beam transmitted substantially perpendicular to the reflected beam path.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: March 3, 2015
    Assignee: Endure Medical, Inc.
    Inventors: Jonathan M. Butler, Robert T. Hewlett, Steven M. Frank
  • STEREOSCOPIC BEAM SPLITTER
    Publication number: 20130271845
    Abstract: According to certain embodiments, a system includes beamsplitter sets, where each beamsplitter set comprises a first beamsplitter module and a second beamsplitter module aligned with the first beamsplitter module. The first beamsplitter module receives a first beam traveling along a first optical path. The first beamsplitter module splits the first beam into a first output beam transmitted along the first optical path and a first split beam transmitted to the second beamsplitter module along a reflected beam path. The second beamsplitter module receives the first split beam. The second beamsplitter module splits the first split beam into a second output beam transmitted substantially parallel to the reflected beam path and a second split beam transmitted substantially perpendicular to the reflected beam path.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 17, 2013
    Inventors: Jonathan M. Butler, Robert T. Hewlett, Steven M. Frank
  • Ophthalmic surgical microscope console
    Patent number: D743036
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: November 10, 2015
    Assignee: Endure Medical, Inc.
    Inventors: Mikhail Boukhny, Jonathan M. Butler, Steven M. Frank, Edie Hewlett, Robert T. Hewlett, John L. Raybuck, Gabriela Tomescu, David M. Weston