Patents by Inventor Gerardus C. M. Dortant

Gerardus C. M. Dortant 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).

  • Replica lens and method of manufacturing same
    Patent number: 4890905
    Abstract: Replica lens having a transparent lens body comprising one or more correction layers of a synthetic resin as well as a bonding layer of a synthetic resin with which the lens body is bonded to one or more auxiliary means or optical components, as well as a method of manufacturing the replica lens.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: January 2, 1990
    Assignee: U.S. Philips Corp.
    Inventors: Gerard E. Van Rosmalen, Renso J. M. Zwiers, Gerardus C. M. Dortant