Patents by Inventor Dharmesh K. Dubey

Dharmesh K. Dubey 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: 8287269
    Abstract: The invention provides molds useful in the production of contact lenses having seamless edges and in which molds movement of one mold half in relation to the other mold half is decreased. These results are attained by providing mold halves with shoulder stops and seam-matching features.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: October 16, 2012
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Dharmesh K. Dubey, Xu Song, Mark E. Schlagel
  • Method for coating articles by mold transfer
    Patent number: 7879267
    Abstract: A method for coating hydrogel and silicone hydrogel articles, and articles made by the method, are provided in which the coating is first applied to the molding surface in which an article-forming material will be cured to form the article. The method permits the thickness and uniformity of the coating to be more easily controlled than in known coating methods.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: February 1, 2011
    Assignee: J&J Vision Care, Inc.
    Inventors: David C. Turner, Lenora C. Copper, Dominic Gourd, Shivkumar Mahadevan, Frank F. Molock, Kevin P. McCabe, Dharmesh K. Dubey, Jeffery S. Longo, Jonathan P. Adams, Andrew J Wagner, Xiaoping Lin
  • DEVICES AND METHODS TO SIMULATE AN OCULAR ENVIRONMENT
    Publication number: 20100300182
    Abstract: Methods and devices used to simulate the use of an ophthalmic lens contained in an ocular environment are disclosed herein.
    Type: Application
    Filed: August 5, 2010
    Publication date: December 2, 2010
    Inventors: Dharmesh K. Dubey, Lauren May
  • Devices and methods to simulate an ocular environment
    Patent number: 7793535
    Abstract: Methods and devices used to simulate the use of an ophthalmic lens contained in an ocular environment are disclosed herein.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: September 14, 2010
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Dharmesh K. Dubey, Lauren May
  • Methods and systems for leaching silicone hydrogel ophthalmic lenses
    Patent number: 7776238
    Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: August 17, 2010
    Inventors: Douglas G. Vanderlaan, Dharmesh K. Dubey, James D. Ford, Frank F. Molock, Jr.
  • Center touch method and apparatus for forming contact lenses
    Patent number: 7241125
    Abstract: A center touch method and apparatus for use in a contact lens station for use with a contact lens mold assembly comprising a first mold half and a second mold half. The center touch apparatus comprises a center touch engaging member having a center touch engaging surface for engaging a central portion of a non-molding surface of one of the mold halves. The center touch method comprising driving one of the mold halves toward the other mold half using the center touch engaging member to contact a central area of the non-molding surface of the one mold half.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: July 10, 2007
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Dharmesh K. Dubey, Mark E. Schlagel, Andrew J. Wagner, James F. Kirk
  • Molds for producing contact lenses
    Publication number: 20040075039
    Abstract: This invention describes molds made from alicyclic co-polymers that are useful in the production of contact lenses and methods for their use.
    Type: Application
    Filed: August 13, 2003
    Publication date: April 22, 2004
    Inventors: Dharmesh K. Dubey, David C. Tumer, Lenora L. Copper, Thomas A. Matiacio, Richard W. Abrams, Kevin P. McCabe, Scott F. Ansell, Richard J. Fougere, Dominic Gourd, Thomas R. Rooney, Xu Song
  • Method for coating articles by mold transfer
    Publication number: 20030052424
    Abstract: A method for coating hydrogel and silicone hydrogel articles, and articles made by the method, are provided in which the coating is first applied to the molding surface in which an article-forming material will be cured to form the article. The method permits the thickness and uniformity of the coating to be more easily controlled than in known coating methods.
    Type: Application
    Filed: August 2, 2001
    Publication date: March 20, 2003
    Inventors: David C. Turner, Lenora C. Copper, Dominic Gourd, Shivkumar Mahadevan, Frank F. Molock, Kevin P. McCabe, Dharmesh K. Dubey, Jeffery S. Longo, Jonathan P. Adams, Andrew J. Wagner, Xiaoping Lin
  • Center touch method and apparatus for forming contact lenses
    Publication number: 20020185757
    Abstract: A center touch method and apparatus for use in a contact lens station for use with a contact lens mold assembly comprising a first mold half and a second mold half. The center touch apparatus comprises a center touch engaging member having a center touch engaging surface for engaging a central portion of a non-molding surface of one of the mold halves. The center touch method comprising driving one of the mold halves toward the other mold half using the center touch engaging member to contact a central area of the non-molding surface of the one mold half.
    Type: Application
    Filed: May 25, 2001
    Publication date: December 12, 2002
    Inventors: Dharmesh K. Dubey, Mark E. Schlagel, Andrew J. Wagner, James F. Kirk