Patents by Inventor Johan G. Ekvall

Johan G. Ekvall 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).

  • Patent number: 7568619
    Abstract: System and method for identifying a component, such as an optical probe or pneumatic scissors, of an ophthalmic surgical device. A component of a surgical device includes an identifier, such as a RFID tag. Data from the RFID tag is transmitted to a RFID reader in the device. A controller determines whether the component corresponding to the received data is operable with the surgical device based on criteria, such as whether the received data is an authorized code that matches data stored in memory or whether the received data solves or satisfies an algorithm. The authorized codes are selected from a larger set of available codes. The controller enables or disables the operation of the device with the component based on whether the criteria is satisfied, the number of uses of the component, an amount of time that has passed since the component has been used, or a geographic location.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: August 4, 2009
    Assignee: Alcon, Inc.
    Inventors: Kirk W. Todd, Johan G. Ekvall, Frederick M. Reed, T. Scott Rowe, Christopher Horvath