Patents by Inventor David J Borthwick

David J Borthwick 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).

  • Communications system with direct access mailbox
    Patent number: 7756258
    Abstract: A communication system (1) in which a user (A) can elect to leave a message directly in the mailbox (11a) of another user (B) without calling or disturbing user (B). A store (database 7) is generated and maintained which identifies those users who are allowed direct access to the mailbox of user (B). The store is automatically updated whenever user (B) sends a communication to other users.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: July 13, 2010
    Assignee: British Telecommunications plc
    Inventors: David J Clift, John G Johnston, Robert M Claxton, David J Borthwick
  • Computer-telephony integration
    Patent number: 7512225
    Abstract: The invention provides a modification to the operation of the intelligent network instruction set whereby on transmitting an Initiate Call Attempt message between the SCP 7 and an SSP 4 an instruction is included which forces the SSP 4 to send a response message whereby the identity assigned to the actions requested is known to the SCP 7 prior to the occurrence of a BCSM event at the SSP.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: March 31, 2009
    Assignee: British Telecommunications PLC
    Inventors: David J Borthwick, Jonathan D Curtis
  • Computer-Telephony Integration
    Publication number: 20080232350
    Abstract: The invention provides a modification to the operation of the intelligent network instruction set whereby on transmitting an Initiate Call Attempt message between the SCP 7 and an SSP 4 an instruction is included which forces the SSP 4 to send a response message whereby the identity assigned to the actions requested is known to the SCP 7 prior to the occurrence of a BCSM event at the SSP.
    Type: Application
    Filed: April 20, 2005
    Publication date: September 25, 2008
    Inventors: David J Borthwick, Jonathan D Curtis