Patents by Inventor Juan Sanchez Garza

Juan Sanchez Garza 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).

  • Method and apparatus for managing access to a prepaid account
    Publication number: 20020103762
    Abstract: A prepaid communications account is shared by at least a first subscriber and a second subscriber whereby access to the prepaid account is locked in response to a first prepaid call originating from the first subscriber. A first portion of the total prepaid talk time in the account is allocated to the first prepaid call. The total prepaid talk time is updated as a first updated prepaid talk time by subtracting the first portion from the total prepaid talk time; unlocking access to the prepaid account; and, while the first prepaid call is ongoing, locking access to the prepaid account in response to a second prepaid call originating from the second subscriber. A second portion of the first updated prepaid talk time is allocated to the second prepaid call. The first updated prepaid talk time is updated to provide a second updated prepaid talk time by subtracting the second portion from the first updated prepaid talk time; and access to the prepaid account is unlocked.
    Type: Application
    Filed: January 26, 2001
    Publication date: August 1, 2002
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ)
    Inventors: Cesar Garcia Lopez, Juan Sanchez Garza, Omar Torres Morales