Patents by Inventor Ravi Sankar Sanka

Ravi Sankar Sanka 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: 6522939
    Abstract: A production control system provides real-time monitoring of process parameters in an automated production line that manufactures contact lenses, the line and having a plurality of process stations with each process station having one or more process control devices that control production operations at each respective process station and generates production parameter data therefrom. The system includes a line monitor device for receiving an externally generated production order including a lot number, product type, and quantity, and further coordinates manufacturing processes at each of the plurality of process stations, and tracks order production. A plurality of cell monitor devices retrieves the production data from one or more process control devices and processes the data to ensure that production parameters are within predefined limits.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: February 18, 2003
    Inventors: Robert D. Strauch, John Mark Lepper, Wallace Anthony Martin, Ravi Sankar Sanka, Craig William Walker, Daniel Tsu-Fang Wang, Lars William Johnson, Leonard Ross Reinhart, Larry G. Hearin, Carolyn R. Solberg, Jeffrey L. Wilson
  • Patent number: 5844802
    Abstract: A production line tracking and quality control system and method thereof comprises a series of pallets for carrying one or more first contact lens mold halves or one or more complementary second contact lens mold halves throughout a contact lens fabrication facility. Each pallet of the series is transported on a conveyor device throughout the fabrication facility, and each pallet includes a unique identifying code. The fabrication facility includes one or more process stations and a control device provides real time monitoring of contact lens fabrication processes at the one or more process stations. The control device further includes a tracking device for identifying the unique code of each of the pallets at one or more process stations while continually receiving monitored process condition values at each station.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: December 1, 1998
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: John Mark Lepper, Ravi Sankar Sanka, Craig William Walker, Daniel Tsu-Fang Wang
  • Patent number: 5696686
    Abstract: A sterilizer data processing system for an automated contact lens manufacturing line that manufactures a plurality of contact lenses defining a lens lot, the manufacturing line including an automated sterilization station for sterilizing the lens lot after their manufacture, the automated sterilization station including a sterilizer process controller for controlling one or more phases of a sterilization process and periodically generating sterilization process data during each sterilization phase includes a device for receiving the sterilization process data from the sterilizer process controller and a device for automatically parsing the sterilization data into text information and sterilizer parameter information and further processing the text information and sterilizer parameter information to automatically generate a sterilization run report associated with a lot number for the sterilized lens lot.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: December 9, 1997
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Ravi Sankar Sanka, Daniel Tsu-Fang Wang, Richard Wayne Abrams, John Mark Lepper, Wallace Anthony Martin, Craig William Walker, Kenneth Kurt Pricer, Lars William Johnson, Leonard Ross Reinhart, James K. Miars