Patents by Inventor Donald F. Ezekiel

Donald F. Ezekiel 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).

  • Soft multifocal contact lens
    Patent number: 7909459
    Abstract: A multifocal contact lens (10, 50) made of flexible material is able to translocate on an eye by virtue of a lower end (22) of the contact lens (10, 50) being truncated so as to provide a relatively wide surface. The lower end (22) engages with the lower eyelid of a wearer. The lower end (22) may be provided with a forwardly projecting ledge (52).
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: March 22, 2011
    Assignee: IOLCO Pty Ltd.
    Inventor: Donald F. Ezekiel
  • SOFT MULTIFOCAL CONTACT LENS
    Publication number: 20090268156
    Abstract: A multifocal contact lens (10, 50) made of flexible material is able to translocate on an eye by virtue of a lower end (22) of the contact lens (10, 50) being truncated so as to provide a relatively wide surface. The lower end (22) engages with the lower eyelid of a wearer. The lower end (22) may be provided with a forwardly projecting ledge (52).
    Type: Application
    Filed: May 1, 2009
    Publication date: October 29, 2009
    Applicant: IOLCO PTY LTD
    Inventor: Donald F. EZEKIEL
  • Soft multifocal contact lens
    Patent number: 7543935
    Abstract: A multifocal contact lens (10, 50) made of flexible material is able to translocate on an eye by virtue of a lower end (22) of the contact lens (10, 50). being truncated so as to provide a relatively wide surface. The lower end (22) engages with the lower eyelid of a wearer. The lower end (22) may be provided with a forwardly projecting ledge (52).
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: June 9, 2009
    Assignee: Iolco Pty Ltd
    Inventor: Donald F. Ezekiel
  • Soft multifocal contact lens
    Patent number: 7052132
    Abstract: A multifocal contact lens (10, 50) made of flexible material is able to translocate on an eye by virtue of a lower end (22) of the contact lens (10, 50) being truncated so as to provide a relatively wide surface. The lower end (22) engages with the lower eyelid of a wearer. The lower end (22) may be provided with a forwardly projecting ledge (52).
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: May 30, 2006
    Assignee: IOLCO Pty Ltd.
    Inventor: Donald F. Ezekiel
  • Soft multifocal contact lens
    Publication number: 20040263776
    Abstract: A multifocal contact lens (10, 50) made of flexible material is able to translocate on an eye by virtue of a lower end (22) of the contact lens (10, 50) being truncated so as to provide a relatively wide surface. The lower end (22) engages with the lower eyelid of a wearer. The lower end (22) may be provided with a forwardly projecting ledge (52).
    Type: Application
    Filed: April 30, 2004
    Publication date: December 30, 2004
    Inventor: Donald F. Ezekiel