Patents by Inventor Graham Bartlett

Graham Bartlett 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: 11558354
    Abstract: Techniques are described to provide efficient protection for a virtual private network. In one example, a method is provided that includes obtaining a packet at a first network entity; determining that the packet is a packet type of an authentication type; determining whether authentication content for the packet matches known good criteria for the packet type of the authentication type; based on determining that the authentication content for the packet does not match the known good criteria, performing at least one of dropping the packet and generating an alarm; and based on determining that the authentication content for the packet does match the known good criteria, processing the packet at the first network entity or forwarding the packet toward a second network entity.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: January 17, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Kyle Mestery, Graham Bartlett
  • Patent number: 11258694
    Abstract: A method is described and in one embodiment includes identifying at an initiator element a list of Internet protocol (“IP”) prefixes corresponding to routes designated as interesting routes, wherein the IP prefixes are included in a Routing Information Base (“RIB”) of the initiator; monitoring the RIB for a change in the list of IP prefixes; and, responsive to detection of a change in the list of IP prefixes, injecting at least a portion of the changed list of IP prefixes into a payload of an IKEv2 NOTIFY message and sending the IKEv2 NOTIFY message to a responder element peered with the initiator element, wherein the responder element updates an RIB of the responder element using the IP prefixes included in the received IKEv2 NOTIFY message.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: February 22, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Robert Edgar Barton, Patrick Grossetete, Laurent Aubert, Frederic Detienne, Graham Bartlett, Amjad Inamdar
  • Publication number: 20200336465
    Abstract: Techniques are described to provide efficient protection for a virtual private network. In one example, a method is provided that includes obtaining a packet at a first network entity; determining that the packet is a packet type of an authentication type; determining whether authentication content for the packet matches known good criteria for the packet type of the authentication type; based on determining that the authentication content for the packet does not match the known good criteria, performing at least one of dropping the packet and generating an alarm; and based on determining that the authentication content for the packet does match the known good criteria, processing the packet at the first network entity or forwarding the packet toward a second network entity.
    Type: Application
    Filed: April 15, 2020
    Publication date: October 22, 2020
    Inventors: Kyle Mestery, Graham Bartlett
  • Publication number: 20180191669
    Abstract: A method is described and in one embodiment includes identifying at an initiator element a list of Internet protocol (“IP”) prefixes corresponding to routes designated as interesting routes, wherein the IP prefixes are included in a Routing Information Base (“RIB”) of the initiator; monitoring the RIB for a change in the list of IP prefixes; and, responsive to detection of a change in the list of IP prefixes, injecting at least a portion of the changed list of IP prefixes into a payload of an IKEv2 NOTIFY message and sending the IKEv2 NOTIFY message to a responder element peered with the initiator element, wherein the responder element updates an RIB of the responder element using the IP prefixes included in the received IKEv2 NOTIFY message.
    Type: Application
    Filed: January 4, 2017
    Publication date: July 5, 2018
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Robert Edgar Barton, Patrick Grossetete, Laurent Aubert, Frederic Detienne, Graham Bartlett, Amjad Inamdar
  • Publication number: 20170222805
    Abstract: A method of managing access to a key. The method comprises associating the key with an encrypted data object, the key being required to decrypt the data object; generating a number of fragments of the key, the number of fragments corresponding to a number of parties subject to a fragmentation agreement; and encrypting each fragment with a public key corresponding to each of the parties. The method further comprises encrypting each encrypted fragment with a public key of a trusted party; and storing the encrypted fragments with the encrypted data object on a server of the trusted party.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 3, 2017
    Inventors: Trent David Telford, William Stroud, Robert Graham Bartlett, Simon Wild
  • Patent number: 6641333
    Abstract: The present application relates to a method of installing a pre-cast pile in the ground which involves applying an enlarged head forming tool to the ground until a volume of soil has been displaced or removed so as to form a void at the surface of the ground. The pre-cast pile is then driven into the ground to a predetermined depth below the void and the void is then filled with concrete or grout to form a cast-in-situ pile head. The diameter of the pile head is greater than the diameter of the pile shaft.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: November 4, 2003
    Assignee: Cementation Foundations Skanska Limited
    Inventors: Graham Bartlett, Melvin Gerrard England
  • Publication number: 20030049079
    Abstract: The present application relates to a method of installing a pre-cast pile in the ground which involves applying an enlarged head forming tool to the ground until a volume of soil has been displaced or removed so as to form a void at the surface of the ground. The pre-cast pile is then driven into the ground to a predetermined depth below the void and the void is then filled with concrete or grout to form a cast-in-situ pile head. The diameter of the pile head is greater than the diameter of the pile shaft.
    Type: Application
    Filed: August 8, 2002
    Publication date: March 13, 2003
    Applicant: Cementation Foundations Skanska Limited Maple Cross House
    Inventors: Graham Bartlett, Melvin Gerrard England