Patents by Inventor David P. Ziegler

David P. Ziegler 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).

  • Assembly and method for evaluating effectiveness of anti-fog coatings of eyewear lenses
    Patent number: 8365619
    Abstract: An assembly for testing the effectiveness of anti-fog coatings on eyewear lenses, the assembly comprising a chamber for receiving and retaining the eyewear, means for controlling the temperature and relative humidity in the chamber, means for providing warm moist air to the chamber, and a hazemeter for detecting and recording haze values exhibited by the lenses; and a method for evaluating effectiveness of anti-fog coatings on eyewear lenses, utilizing the assembly.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: February 5, 2013
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: David P. Ziegler, Christopher P. Drew, Michelle Markey
  • Assembly And Method for Evaluating Effectiveness of Anti-Fog Coatings of Eyewear Lenses
    Publication number: 20110285997
    Abstract: An assembly for testing the effectiveness of anti-fog coatings on eyewear lenses, the assembly comprising a chamber for receiving and retaining the eyewear, means for controlling the temperature and relative humidity in the chamber, means for providing warm moist air to the chamber, and a hazemeter for detecting and recording haze values exhibited by the lenses; and a method for evaluating effectiveness of anti-fog coatings on eyewear lenses, utilizing the assembly.
    Type: Application
    Filed: May 5, 2010
    Publication date: November 24, 2011
    Applicant: USA as represented by the Secretary of the Army
    Inventors: David P. Ziegler, Christopher Drew, Michelle Markey