Patents by Inventor Christopher G. McClain

Christopher G. McClain 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: 4979207
    Abstract: A unique cellular telephone billing system (100) processes call detail records (102) of cellular telephone calls made by users of multi-line customers to produce invoices and reports. The call detail records (301 and 302) for each user of a multi-line customer include a unique key identification number (311 and 321) and may include an information format (401 and 402) having variable-length sub-fields (411-415 and 421-423). Call detail records (102) with key identification numbers are pooled into files (110) and then sorted for each multi-line customer by key identification number and corresponding information format to produce consolidated billing and usage information for all of the cellular telephones as well as individual invoices for each of user-employee of each multi-line customer.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: December 18, 1990
    Assignee: Motorola, Inc.
    Inventors: David M. Baum, Andrea E. Bradshaw, Christopher G. McClain