Patents by Inventor Jan van Lievenoogen

Jan van Lievenoogen 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).

  • Mold, molding system and molding machine for making ophthalmic devices
    Patent number: 7156638
    Abstract: This invention provides a mold comprising a first mold half which works in conjunction with a second mold half for forming ophthalmic devices wherein said first mold half comprises at least one changeable cassette comprising inserts for forming said ophthalmic devices. The mold is particularly well-suited for use in an injection molding machine.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: January 2, 2007
    Assignee: Johnson & Johnson Vision Products Inc.
    Inventors: Victor Lust, Philip K. Parnell, Kornelis Renkema, Jan van Lievenoogen, Will Van Kraay
  • Mold, molding system and molding machine for making ophthalmic devices
    Publication number: 20030203066
    Abstract: This invention provides a mold comprising a first mold half which works in conjunction with a second mold half for forming ophthalmic devices wherein said first mold half comprises at least one changeable cassette comprising inserts for forming said ophthalmic devices. The mold is particularly well-suited for use in an injection molding machine.
    Type: Application
    Filed: May 14, 2003
    Publication date: October 30, 2003
    Inventors: Victor Lust, Philip K. Parnell, Kornelis Renkema, Jan Van Lievenoogen, Will Van Kraay
  • Mold, molding system and molding machine for making ophthalmic devices
    Patent number: 6592356
    Abstract: This invention provides a mold comprising a first mold half which works in conjunction with a second mold half for forming ophthalmic devices wherein said first mold half comprises at least one changeable cassette comprising inserts for forming said ophthalmic devices. The mold is particularly well-suited for use in an injection molding machine.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: July 15, 2003
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Victor Lust, Philip K. Parnell, Kornelis Renkema, Jan van Lievenoogen, Will van Kraay
  • Apparatus and method for producing center gated lens molds for contact lens manufacture
    Patent number: 5716540
    Abstract: A method and apparatus for the manufacture of lens molds used in the formation of optical contact lenses, the apparatus including a center gate aligned on the central axis of the lens mold cavity for delivery of the melt polymer in an axisymmetrical manner. The methodology produces lens molds of extremely precise dimensions as measured against lens molds produced with side gated technology.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: February 10, 1998
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Thomas A. Matiacio, Keith T. O'Brien, Victor Lust, Jeffrey H. Roffman, Kornelis Renkema, Wybren van der Meulen, Franciscus Paridaans, Jan van Lievenoogen