Patents by Inventor David A. Katterhenry

David A. Katterhenry 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).

  • Molds for use in contact lens production
    Patent number: 8535043
    Abstract: The present invention provides molds useful in contact lens production, which molds incorporate a centering and spacing feature in the form of tabs on one of the mold halves. The spacing feature both centers the mold halves in relationship to each other and permits free flow of excess monomer from the mold. Additionally, the spacing feature aids in height control of the one mold half in relation to the other mold half.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: September 17, 2013
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Jose L. Perez, David A. Katterhenry, Matias D. Heinrich
  • FREE FORM OPHTHALMIC LENS MOLD
    Publication number: 20080179770
    Abstract: This invention includes methods and systems for forming an ophthalmic lens with a free form edge. In particular, the present invention provides a mold assembly including a vent portion around a circumference of a lens forming portion. A precision dose of lens forming mixture can be placed within the mold asembly to fill a lens forming portion of the mold assembly. Atmospheric gas may escape through the vent during lens assembly.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventors: Thomas R. Rooney, Gregory J. Hoffman, Scott F. Ansell, David A. Katterhenry, Ture Kindt-Larsen
  • MOLDS FOR USE IN CONTACT LENS PRODUCTION
    Publication number: 20080102151
    Abstract: The present invention provides molds useful in contact lens production, which molds incorporate a centering and spacing feature in the form of tabs on one of the mold halves. The spacing feature both centers the mold halves in relationship to each other and permits free flow of excess monomer from the mold. Additionally, the spacing feature aids in height control of the one mold half in relation to the other mold half.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 1, 2008
    Inventors: Jose L. Perez, David A. Katterhenry, Matias D. Heinrich
  • Package mold combination
    Publication number: 20070257387
    Abstract: This invention includes methods and systems for processing biomedical devices, such as ophthalmic lenses, formed with a prepolymer reactin mixture and packaged within a mold part used to fashion the device.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 8, 2007
    Inventors: Gregory Hofmann, Michael Tokarski, Scott Ansell, David Katterhenry, W. Martin, Craig Walker, Thomas Rooney