Patents by Inventor John C. Curtis

John C. Curtis 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).

  • Publication number: 20200131344
    Abstract: Epoxidized natural rubber compositions, elastomer blends containing an epoxidized natural rubber, and materials containing carbon black and epoxidized natural rubber.
    Type: Application
    Filed: July 9, 2018
    Publication date: April 30, 2020
    Inventors: Charles R HERD, John C CURTIS, Zachary A. COMBS, Andrew V CHAPMAN, Stuart COOK, Paul S BROWN, Graham T SPILLER, Jaymini PATEL
  • Patent number: 10009254
    Abstract: A method in a flow controller for selecting optimal path is provided. A plurality of potential flow paths in the network for a particular pair of source and destination switch ports is determined in a flow controller. A plurality of cost factors associated with each of the plurality of potential flow paths is identified. Individual cost values are determined for each of the identified plurality of cost factors for each of the plurality of potential flow paths by multiplying the identified cost factors by a stratification factor. A single cost value for each of the plurality of potential flow paths is determined based on the determined individual cost values. One of the potential flow paths is selected in the flow controller for the particular pair of source and destination switch ports based upon the determined single cost value.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: June 26, 2018
    Assignee: NetScout Systems, Inc.
    Inventors: David A. Greenbaum, Steven M. Rosenberry, Peter D. Toich, John C. Curtis
  • Publication number: 20170331722
    Abstract: A method in a flow controller for selecting optimal path is provided. A plurality of potential flow paths in the network for a particular pair of source and destination switch ports is determined in a flow controller. A plurality of cost factors associated with each of the plurality of potential flow paths is identified. Individual cost values are determined for each of the identified plurality of cost factors for each of the plurality of potential flow paths by multiplying the identified cost factors by a stratification factor. A single cost value for each of the plurality of potential flow paths is determined based on the determined individual cost values. One of the potential flow paths is selected in the flow controller for the particular pair of source and destination switch ports based upon the determined single cost value.
    Type: Application
    Filed: May 19, 2016
    Publication date: November 16, 2017
    Inventors: David A. Greenbaum, Steven M. Rosenberry, Peter D. Toich, John C. Curtis
  • Patent number: 8018854
    Abstract: A system and method for testing packet switch networks is provided. The method comprises establishing a first network path associated with a first device and a local device. The first network path includes at least a first router, a second router, and a data link layer switch. A first route and a second route along the first network path are established. The method further includes preventing any packets received from the first device via the first route from reaching the local device, allowing packets received via the second route to reach the local device, and directing packets sent by the local device to a test set using the second static route.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: September 13, 2011
    Assignee: Eastern Research Inc.
    Inventor: John C. Curtis
  • Publication number: 20040008734
    Abstract: A common channel signaling system is disclosed that communicates Signaling System Number 7 (SS7) signaling information between two SS7 Signaling Points (SPs) through a packet-switched network. The preferred embodiment of the system includes at least two SS7 SPs and two Signaling Gateways (SGs). Each SG communicates SS7 signaling information with a separate one of the two SS7 SPs through a dedicated circuit. The two SGs intercommunicate with each other through a packet switched network. Additionally, the two SS7 SPs communicate the SS7 signaling information between each other through the two dedicated circuits, the two SGs, and the packet switched network. The common channel signaling data is for transmission over a packet switched network and is then transmitted to a received SG. The receiving SG receives the common channel signal data therefrom.
    Type: Application
    Filed: April 23, 2003
    Publication date: January 15, 2004
    Inventors: Seamus G. Gilchrist, John C. Curtis, Barry Nagelberg, Heinz Prantner
  • Publication number: 20040008735
    Abstract: A common channel signaling system is disclosed that communicates Signaling System Number 7 (SS7) signaling information between two SS7 Signaling Points (SPs) through a packet-switched network. The preferred embodiment of the system includes at least two SS7 SPs and two Signaling Gateways (SGs). Each SG communicates SS7 signaling information with a separate one of the two SS7 SPs through a dedicated circuit. The two SGs intercommunicate with each other through a packet switched network. Additionally, the two SS7 SPs communicate the SS7 signaling information between each other through the two dedicated circuits, the two SGs, and the packet switched network. The common channel signaling data is for transmission over a packet switched network and is then transmitted to a received SG. The receiving SG receives the common channel signal data therefrom.
    Type: Application
    Filed: April 23, 2003
    Publication date: January 15, 2004
    Inventors: Seamus G. Gilchrist, John C. Curtis, Barry Nagelberg, Heinz Prantner
  • Publication number: 20030235207
    Abstract: A common channel signaling system is disclosed that communicates Signaling System Number 7 (SS7) signaling information between two SS7 Signaling Points (SPs) through a packet-switched network. The preferred embodiment of the system includes at least two SS7 SPs and two Signaling Gateways (SGs). Each SG communicates SS7 signaling information with a separate one of the two SS7 SPs through a dedicated circuit. The two SGs intercommunicate with each other through a packet switched network. Additionally, the two SS7 SPs communicate the SS7 signaling information between each other through the two dedicated circuits, the two SGs, and the packet switched network. The common channel signaling data is for transmission over a packet switched network and is then transmitted to a received SG. The receiving SG receives the common channel signal data therefrom.
    Type: Application
    Filed: April 23, 2003
    Publication date: December 25, 2003
    Inventors: Seamus G. Gilchrist, John C. Curtis, Barry Nagelberg, Heinz Prantner
  • Publication number: 20030231654
    Abstract: A common channel signaling system is disclosed that communicates Signaling System Number 7 (SS7) signaling information between two SS7 Signaling Points (SPs) through a packet-switched network. The preferred embodiment of the system includes at least two SS7 SPs and two Signaling Gateways (SGs). Each SG communicates SS7 signaling information with a separate one of the two SS7 SPs through a dedicated circuit. The two SGs intercommunicate with each other through a packet switched network. Additionally, the two SS7 SPs communicate the SS7 signaling information between each other through the two dedicated circuits, the two SGs, and the packet switched network. The common channel signaling data is for transmission over a packet switched network and is then transmitted to a received SG. The receiving SG receives the common channel signal data therefrom.
    Type: Application
    Filed: April 23, 2003
    Publication date: December 18, 2003
    Inventors: Seamus G. Gilchrist, John C. Curtis, Barry Nagelberg, Heinz Prantner
  • Publication number: 20030233612
    Abstract: A common channel signaling system is disclosed that communicates Signaling System Number 7 (SS7) signaling information between two SS7 Signaling Points (SPs) through a packet-switched network. The preferred embodiment of the system includes at least two SS7 SPs and two Signaling Gateways (SGs). Each SG communicates SS7 signaling information with a separate one of the two SS7 SPs through a dedicated circuit. The two SGs intercommunicate with each other through a packet switched network. Additionally, the two SS7 SPs communicate the SS7 signaling information between each other through the two dedicated circuits, the two SGs, and the packet switched network. The common channel signaling data is for transmission over a packet switched network and is then transmitted to a received SG. The receiving SG receives the common channel signal data therefrom.
    Type: Application
    Filed: April 30, 2003
    Publication date: December 18, 2003
    Inventors: Seamus G. Gilchrist, John C. Curtis, Barry Nagelberg, Heinz Prantner
  • Publication number: 20030231643
    Abstract: A common channel signaling system is disclosed that communicates Signaling System Number 7 (SS7) signaling information between two SS7 Signaling Points (SPs) through a packet-switched network. The preferred embodiment of the system includes at least two SS7 SPs and two Signaling Gateways (SGs). Each SG communicates SS7 signaling information with a separate one of the two SS7 SPs through a dedicated circuit. The two SGs intercommunicate with each other through a packet switched network. Additionally, the two SS7 SPs communicate the SS7 signaling information between each other through the two dedicated circuits, the two SGs, and the packet switched network. The common channel signaling data is for transmission over a packet switched network and is then transmitted to a received SG. The receiving SG receives the common channel signal data therefrom.
    Type: Application
    Filed: April 23, 2003
    Publication date: December 18, 2003
    Inventors: Seamus G. Gilchrist, John C. Curtis, Barry Nagelberg, Heinz Prantner
  • Publication number: 20030231622
    Abstract: A common channel signaling system is disclosed that communicates Signaling System Number 7 (SS7) signaling information between two SS7 Signaling Points (SPs) through a packet-switched network. The preferred embodiment of the system includes at least two SS7 SPs and two Signaling Gateways (SGs). Each SG communicates SS7 signaling information with a separate one of the two SS7 SPs through a dedicated circuit. The two SGs intercommunicate with each other through a packet switched network. Additionally, the two SS7 SPs communicate the SS7 signaling information between each other through the two dedicated circuits, the two SGs, and the packet switched network. The common channel signaling data is for transmission over a packet switched network and is then transmitted to a received SG. The receiving SG receives the common channel signal data therefrom.
    Type: Application
    Filed: April 23, 2003
    Publication date: December 18, 2003
    Inventors: Seamus G. Gilchrist, John C. Curtis, Barry Nagelberg, Heinz Prantner