Patents by Inventor Paul Brittain
Paul Brittain 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).
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Patent number: 9491302Abstract: Methods, apparatus and computer program products for processing signaling information for telephone call attempts in a packet-based telephony service. An overload protection node is introduced to protect a signaling node from an overload of signaling information for telephone call attempts. A characteristic of signaling information for telephone call attempts in the packet-based telephony service is monitored by the overload protection node and on the basis of the monitored characteristic, the overload protection node processes signaling information for telephone call attempts according to one of a number of different modes of operation. A mode of operation may involve transmitting signaling information for a call attempt to the signaling node or selecting one or more call attempts at the overload protection node for the purpose of reducing overload in the signaling node.Type: GrantFiled: September 27, 2013Date of Patent: November 8, 2016Assignee: Metaswitch Networks Ltd.Inventor: Paul Brittain
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Publication number: 20140044249Abstract: A method and apparatus for establishing a communication session with a user in a telecommunications network. The session is to be established between a remote device and one of a plurality of communication clients. Each of the clients is on a user device at which the user may participate in the session. A communication session control system located in a signalling path for the session transmits a session establishment request to a given client to place that client in a prior-to-answer session state. In response, the system receives a request from that client that the option to establish the session with the remote device be made available to at least one client of the plurality of clients other than the given client. The system transmits notification data to the at least one other client to notify that the session is available for retrieval by the at least one other client.Type: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Inventor: John Paul Brittain
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Publication number: 20140023067Abstract: Methods, apparatus and computer program products for processing signaling information for telephone call attempts in a packet-based telephony service. An overload protection node is introduced to protect a signaling node from an overload of signaling information for telephone call attempts. A characteristic of signaling information for telephone call attempts in the packet-based telephony service is monitored by the overload protection node and on the basis of the monitored characteristic, the overload protection node processes signaling information for telephone call attempts according to one of a number of different modes of operation. A mode of operation may involve transmitting signaling information for a call attempt to the signaling node or selecting one or more call attempts at the overload protection node for the purpose of reducing overload in the signaling node.Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Inventor: Paul Brittain
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Patent number: 8611522Abstract: A method and apparatus for processing telephone calls in a packet-based telephony service is disclosed. A store of telephone party identifiers is maintained for multi-service users having access to the packet-based telephony service and an alternate telephony service. Incoming signaling information for telephone calls in the packet-based telephony service is monitored and outgoing signaling information may be altered with reference to the store. An alteration may involve replacing telephony party identification data associated with one telephony service for telephony party identification data associated with another telephony service. The invention allows a multi-service user to be consistently identified by other telephony users by a single telephony party identifier instead of one telephony party identifier for each service they subscribe to.Type: GrantFiled: March 3, 2008Date of Patent: December 17, 2013Assignee: Metaswitch Networks LtdInventors: Chris Mairs, Paul Brittain, Martin Taylor
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Patent number: 8428235Abstract: Embodiments of the present invention, include provision of enhanced telephony services for telephone calls received at local telephone exchange switches which do not themselves support identification of enhanced telephony service users and the associated triggering to initiate the provision of enhanced telephony services. Using a supported number portability mechanism, local telephone exchange switches allow provision of enhanced telephony services.Type: GrantFiled: September 18, 2009Date of Patent: April 23, 2013Assignee: Metaswitch Networks LtdInventors: Martin Taylor, Paul Brittain
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Publication number: 20100142694Abstract: Embodiments of the present invention, include provision of enhanced telephony services for telephone calls received at local telephone exchange switches which do not themselves support identification of enhanced telephony service users and the associated triggering to initiate the provision of enhanced telephony services. Using a supported number portability mechanism, local telephone exchange switches allow provision of enhanced telephony services.Type: ApplicationFiled: September 18, 2009Publication date: June 10, 2010Applicant: DATA CONNECTION LIMITEDInventors: Martin Taylor, Paul Brittain
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Publication number: 20080240400Abstract: A method and apparatus for processing telephone calls in a packet-based telephony service is disclosed. A store of telephone party identifiers is maintained for multi-service users having access to the packet-based telephony service and an alternate telephony service. Incoming signaling information for telephone calls in the packet-based telephony service is monitored and outgoing signaling information may be altered with reference to the store. An alteration may involve replacing telephony party identification data associated with one telephony service for telephony party identification data associated with another telephony service. The invention allows a multi-service user to be consistently identified by other telephony users by a single telephony party identifier instead of one telephony party identifier for each service they subscribe to.Type: ApplicationFiled: March 3, 2008Publication date: October 2, 2008Applicant: Data Connection LimitedInventors: Chris Mairs, Paul Brittain, Martin Taylor
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Patent number: 6867299Abstract: Disclosed are compounds of the general formula which are oxamide derivatives and inhibitors of the enzyme inosine monophosphate dehydrogenase (IMPDH).Type: GrantFiled: February 8, 2001Date of Patent: March 15, 2005Assignee: Hoffmann-La Roche Inc.Inventors: Michael John Broadhurst, Christopher Huw Hill, David Nigel Hurst, Philip Stephen Jones, Paul Brittain Kay, Ian Reginald Kilford, Robert Murray McKinnell
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Patent number: 6372883Abstract: The invention is concerned with amino acid derivatives of the formula and salts of acidic compounds of formula I with bases, which are viral proteinase inhibitors useful as antiviral agents, especially for the treatment or prophylaxis of infections caused by Hepatitis C, Hepatitis G and human GB viruses.Type: GrantFiled: March 10, 1999Date of Patent: April 16, 2002Assignee: Hoffmann-La Roche Inc.Inventors: Michael Richard Attwood, David Nigel Hurst, Philip Stephen Jones, Paul Brittain Kay, Tony Michael Raynham, Francis Xavier Wilson
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Patent number: 6187905Abstract: The invention relates to &agr;-ketoamides of the general formula wherein R1 to R12 have the significances given in the description, and their salts. The &agr;-ketoamide derivatives provided by the present invention inhibit proteinases of viral origin, such as HCV protease, and can be used in the treatment of viral infections, especially viral infections caused by hepatitis C, hepatitis G and human GB viruses.Type: GrantFiled: May 4, 1999Date of Patent: February 13, 2001Assignee: Hoffmann-La Roche Inc.Inventors: David Nigel Hurst, Philip Stephen Jones, Paul Brittain Kay, Tony Michael Raynham, Francis Xavier Wilson
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Patent number: 6018020Abstract: The invention provides amino acid derivatives of the formula ##STR1## wherein E represents CHO or B(OH).sub.2 ;R.sup.1 represents lower alkyl (optionally substituted by halo, cyano, lower alkylthio, aryl-lower alkylthio, aryl or heteroaryl), lower alkenyl or lower alkynyl;R.sup.2 represents lower alkyl optionally substituted by hydroxy, carboxy, aryl, aminocarbonyl or lower cycloalkyl; andR.sup.3 represents hydrogen or lower alkyl; orR.sup.2 and R.sup.3 together represent di- or trimethylene optionally substituted by hydroxy;R.sup.4 represents lower alkyl (optionally substituted by hydroxy, lower cycloalkyl, carboxy, aryl, lower alkylthio, cyano-lower alkylthio or aryl-lower alkylthio), lower alkenyl, aryl or lower cycloalkyl;R.sup.5 represents lower alkyl (optionally substituted by hydroxy, lower alkylthio, aryl, aryl-lower alkylthio or cyano-lower alkylthio) or lower cycloalkyl;R.sup.6 represents hydrogen or lower alkyl;R.sup.Type: GrantFiled: June 12, 1998Date of Patent: January 25, 2000Assignee: Hoffman-La Roche Inc.Inventors: Michael Richard Attwood, David Nigel Hurst, Philip Stephen Jones, Paul Brittain Kay, Tony Michael Raynham, Francis Xavier Wilson
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Patent number: 5866684Abstract: The invention provides amino acid derivatives of the formula ##STR1## wherein E represents CHO or B(OH).sub.2 ;R.sup.1 represents lower alkyl (optionally substituted by halo, cyano, lower alkylthio, aryl-lower alkylthio, aryl or heteroaryl), lower alkenyl or lower alkynyl;R.sup.2 represents lower alkyl optionally substituted by hydroxy, carboxy, aryl, aminocarbonyl or lower cycloalkyl; andR.sup.3 represents hydrogen or lower alkyl; orR.sup.2 and R.sup.3 together represent di- or trimethylene optionally substituted by hydroxy;R.sup.4 represents lower alkyl (optionally substituted by hydroxy, lower cycloalkyl, carboxy, aryl, lower alkylthio, cyano-lower alkylthio or aryl-lower alkylthio), lower alkenyl, aryl or lower cycloalkyl;R.sup.5 represents lower alkyl (optionally substituted by hydroxy, lower alkylthio, aryl, aryl-lower alkylthio or cyano-lower alkylthio) or lower cycloalkyl;R.sup.6 represents hydrogen or lower alkyl;R.sup.Type: GrantFiled: November 14, 1997Date of Patent: February 2, 1999Assignee: Hoffmann-La Roche Inc.Inventors: Michael Richard Attwood, David Nigel Hurst, Philip Stephen Jones, Paul Brittain Kay, Tony Michael Raynham, Francis Xavier Wilson
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Patent number: D942595Type: GrantFiled: April 25, 2016Date of Patent: February 1, 2022Assignee: Eaton Intelligent Power LimitedInventors: Patrick Alan Schilling, Justin Troy Straley, John Paul Brittain