Patents by Inventor Neil T. Mai

Neil T. Mai 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).

  • Variable optical power telescopic sight with side focus control
    Patent number: 6005711
    Abstract: A variable optical power telescopic sight with adjustable focus control includes a tubular housing having a longitudinal axis, an interior and exterior, and first and second ends. The housing holds an eyepiece positioned at the second end and an erector positioned in the interior of the housing medially of the first end and the eyepiece. To enable side focus control in the telescopic sight, an objective lens system includes a stationary portion positioned in the interior of the housing near the first end and a movable portion positioned in the interior of the housing between the stationary portion and the erector for movement generally along the longitudinal axis to adjust the focus of the telescopic sight. A manually adjustable focus control device projects outwardly from the exterior of the housing in a direction transverse to the longitudinal axis and is connected to the movable portion of the objective lens system.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: December 21, 1999
    Assignee: Leupold & Stevens, Inc.
    Inventors: Neil T. Mai, Mark A. Thomas
  • Optical telescope
    Patent number: D347441
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: May 31, 1994
    Assignee: Leupold & Stevens, Inc.
    Inventors: Hart D. Lutter, Neil T. Mai, Forrest D. Babcock, Allen D. Tucker