Patents by Inventor Frank Cardenas

Frank Cardenas 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: 7243076
    Abstract: A system and method for secure and private on-line shopping has an on-line shopping store having a plurality of computers for accessing on-line retailers. An on-line shopping store server is provided and is coupled to the plurality of computers. The on-line shopping store server is used for hosting an on-line shopping store web site. An on-line store shopping card is further provided and is used for purchasing items from the on-line retailers. The on-line store shopping card is a pre-paid card having an assigned monetary value and identification number. A shopping card server is coupled to the on-line shopping store server. The shopping card server is used for verifying authenticity and monetary value of the on-line store shopping card, for crediting and debiting the monetary value of the on-line store shopping card, and for transferring payments to and from a user of the on-line store shopping card and the on-line retailers.
    Type: Grant
    Filed: November 24, 2000
    Date of Patent: July 10, 2007
    Inventor: Frank A. Cardenas
  • Patent number: 4697600
    Abstract: The method involves obtaining tissue and cells for biopsy by fine needle aspiration comprising the steps of: (a) inserting one end of a fine, hollow needle into an area of body tissue; (b) inserting the protruding end of the fine, hollow needle into an evacuated container with a pre-established vacuum; (c) continuously suctioning tissue and cell samples through the fine, hollow needle into the container; (d) withdrawing the fine, hollow needle from the body tissue; and (e) preserving the tissue and cell samples in the container.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: October 6, 1987
    Inventors: Frank Cardenas, Ellsworth J. Stay
  • Patent number: D788294
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: May 30, 2017
    Inventors: Lazara Cardenas, Frank Cardenas