Patents by Inventor Patrick S. Callahan

Patrick S. Callahan 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: 20250076247
    Abstract: Disclosed herein is an apparatus for measuring crevice formation having a housing, a working electrode, a crevice former within the housing, a counter electrode within the housing, and a reference electrode within the housing. The electrodes and crevice former have electrical connections outside the housing. The crevice former has a silicon wafer having a thin film potentiometric sensor and is positioned within 100 ?m of a surface of a sample in electrical connection with the working electrode. The housing is filled with electrolyte and both electrical testing and X-ray computed microtomography are performed on the sample.
    Type: Application
    Filed: September 5, 2024
    Publication date: March 6, 2025
    Applicant: The Government of the United States of America, as represaented by the Secretary of the Navy
    Inventors: Carlos M. Hangarter, Andrew B. Geltmacher, Nicole R. Tailleart, William J. Kinee, Scott M. Olig, Patrick G. Callahan, Dillon S. Watring
  • Patent number: 10986016
    Abstract: A differentiated routing system includes an electronic service in communication with an ingress gateway that receives a communication service, such as a call from a terminal, over a trunk. The service receives a request from the ingress gateway for establishing a communication service for the calling party terminal. The service obtains information associated with the calling party terminal, which may be based on the trunk and its relationship to a customer, in which the information is to be used for applying at least one of a routing decision and policy decision to the communication service, and appends a tag to the request based on the information. The service may then transmit the request appended with the information to a routing device, which may then use the information when providing the service.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: April 20, 2021
    Assignee: Level 3 Communications, LLC
    Inventors: Richard D. Moore, Matthew C. Hess, Patrick S. Callahan
  • Patent number: 10841200
    Abstract: A differentiated routing system is provided for routing a communication service according to an access point of a subscriber terminal to a first network domain. The system includes a computing system executing a core routing engine (CRE) that receives a request for a communication service from the subscriber terminal. When the communication service is to be routed to a second network domain, the CRE identifies an access point at which the subscriber terminal accesses the first network domain, includes a tag in the request according to the identified access point. The tag includes information to be used by the second network domain for routing the communication service. The CRE then transmits the request to the second network domain.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: November 17, 2020
    Assignee: Level 3 Communications, LLC
    Inventors: Patrick S. Callahan, Richard Dean Terpstra, Adam Charles Uzelac
  • Publication number: 20200084140
    Abstract: A differentiated routing system includes an electronic service in communication with an ingress gateway that receives a communication service, such as a call from a terminal, over a trunk. The service receives a request from the ingress gateway for establishing a communication service for the calling party terminal. The service obtains information associated with the calling party terminal, which may be based on the trunk and its relationship to a customer, in which the information is to be used for applying at least one of a routing decision and policy decision to the communication service, and appends a tag to the request based on the information. The service may then transmit the request appended with the information to a routing device, which may then use the information when providing the service.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 12, 2020
    Applicant: Level 3 Communications, LLC
    Inventors: Richard D. Moore, Matthew C. Hess, Patrick S. Callahan
  • Patent number: 10484270
    Abstract: A differentiated routing system includes an electronic service in communication with an ingress gateway that receives a communication service, such as a call from a terminal, over a trunk. The service receives a request from the ingress gateway for establishing a communication service for the calling party terminal. The service obtains information associated with the calling party terminal, which may be based on the trunk and its relationship to a customer, in which the information is to be used for applying at least one of a routing decision and policy decision to the communication service, and appends a tag to the request based on the information. The service may then transmit the request appended with the information to a routing device, which may then use the information when providing the service.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: November 19, 2019
    Assignee: Level 3 Communications, LLC
    Inventors: Richard D. Moore, Matthew C. Hess, Patrick S. Callahan
  • Publication number: 20170331729
    Abstract: A differentiated routing system includes an electronic service in communication with an ingress gateway that receives a communication service, such as a call from a terminal, over a trunk. The service receives a request from the ingress gateway for establishing a communication service for the calling party terminal. The service obtains information associated with the calling party terminal, which may be based on the trunk and its relationship to a customer, in which the information is to be used for applying at least one of a routing decision and policy decision to the communication service, and appends a tag to the request based on the information. The service may then transmit the request appended with the information to a routing device, which may then use the information when providing the service.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Applicant: Level 3 Communications, LLC
    Inventors: Richard D. Moore, Matthew C. Hess, Patrick S. Callahan
  • Publication number: 20170250895
    Abstract: A differentiated routing system is provided for routing a communication service according to an access point of a subscriber terminal to a first network domain. The system includes a computing system executing a core routing engine (CRE) that receives a request for a communication service from the subscriber terminal. When the communication service is to be routed to a second network domain, the CRE identifies an access point at which the subscriber terminal accesses the first network domain, includes a tag in the request according to the identified access point. The tag includes information to be used by the second network domain for routing the communication service. The CRE then transmits the request to the second network domain.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Inventors: Patrick S. Callahan, Richard Dean Terpstra, Adam Charles Uzelac
  • Patent number: 9654381
    Abstract: A differentiated routing system is provided for routing a communication service according to an access point of a subscriber terminal to a first network domain. The system includes a computing system executing a core routing engine (CRE) that receives a request for a communication service from the subscriber terminal. When the communication service is to be routed to a second network domain, the CRE identifies an access point at which the subscriber terminal accesses the first network domain, includes a tag in the request according to the identified access point. The tag includes information to be used by the second network domain for routing the communication service. The CRE then transmits the request to the second network domain.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: May 16, 2017
    Assignee: Level 3 Communications, LLC
    Inventors: Patrick S. Callahan, Richard Dean Terpstra, Adam Charles Uzelac
  • Publication number: 20150230149
    Abstract: A differentiated routing system is provided for routing a communication service according to an access point of a subscriber terminal to a first network domain. The system includes a computing system executing a core routing engine (CRE) that receives a request for a communication service from the subscriber terminal. When the communication service is to be routed to a second network domain, the CRE identifies an access point at which the subscriber terminal accesses the first network domain, includes a tag in the request according to the identified access point. The tag includes information to be used by the second network domain for routing the communication service. The CRE then transmits the request to the second network domain.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 13, 2015
    Applicant: Level 3 Communications, LLC
    Inventors: Patrick S. Callahan, Richard Dean Terpstra, Adam Charles Uzelac
  • Patent number: 7904555
    Abstract: An embodiment of a method for use in performing interoperability testing between two network architectures includes forming multiple transaction signatures that each characterizes a communication transaction conducted over the two networks and analyzing each of the transaction signatures to determine if the transaction signature matches a previously classified pattern. The method may further include generating a report identifying each of the communication transactions and indicating that each of the communication transactions is classified with a classification associated with a previously classified pattern or are of unknown classification. Another method includes receiving a transaction signature composed of multiple transaction elements, and determining whether the received transaction signature corresponds to a previously identified transaction signature pattern.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: March 8, 2011
    Assignee: Level 3 Communications, LLC
    Inventors: Ricky L. Nooner, Gerald H. Gorsegner, Jr., Danny R. Rock, Patrick S. Callahan
  • Publication number: 20100274896
    Abstract: An embodiment of a method for use in performing interoperability testing between two network architectures includes forming multiple transaction signatures that each characterizes a communication transaction conducted over the two networks and analyzing each of the transaction signatures to determine if the transaction signature matches a previously classified pattern. The method may further include generating a report identifying each of the communication transactions and indicating that each of the communication transactions is classified with a classification associated with a previously classified pattern or are of unknown classification. Another method includes receiving a transaction signature composed of multiple transaction elements, and determining whether the received transaction signature corresponds to a previously identified transaction signature pattern.
    Type: Application
    Filed: July 2, 2010
    Publication date: October 28, 2010
    Inventors: Rick L. Nooner, Gerald H. Gorsegner, JR., Danny R. Rock, Patrick S. Callahan
  • Patent number: 7752297
    Abstract: An embodiment of a method for use in performing interoperability testing between two network architectures includes forming multiple transaction signatures that each characterizes a communication transaction conducted over the two networks and analyzing each of the transaction signatures to determine if the transaction signature matches a previously classified pattern. The method may further include generating a report identifying each of the communication transactions and indicating that each of the communication transactions is classified with a classification associated with a previously classified pattern or are of unknown classification. Another method includes receiving a transaction signature composed of multiple transaction elements, and determining whether the received transaction signature corresponds to a previously identified transaction signature pattern.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: July 6, 2010
    Assignee: Level 3 Communications, LLC
    Inventors: Ricky L. Nooner, Gerald H. Gorsegner, Jr., Danny R. Rock, Patrick S. Callahan