Patents by Inventor Gregory J. Hoffman

Gregory J. Hoffman 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).

  • 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