Patents by Inventor Donald Stevenson

Donald Stevenson 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: 11979308
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: May 7, 2024
    Assignee: ACCEDIAN NETWORKS INC.
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Publication number: 20240075760
    Abstract: A crafting apparatus (10) includes a working portion (22) and a base portion (20). The working portion (22) includes a lower surface (32) and an upper surface (34). The upper surface (34) defines a working three dimensional Cartesian coordinate system (X-Y-Z). The base portion (20) includes a lower surface (24) and an upper surface (26). The lower surface (32) of the working portion (22) is disposed adjacent to the upper surface (26) of the base portion (20). The lower surface (24) defines a non-working three dimensional Cartesian coordinate system (XS-YS-ZS). The upper surface (34) of the working portion (22) extends relative to the lower surface (24) of the base portion (20) at an angle (?22) for angularly-offsetting the working three dimensional Cartesian coordinate system (X-Y-Z) from the non-working three dimensional Cartesian coordinate system (XS-YS-ZS). Methods (200, 300) are also disclosed.
    Type: Application
    Filed: January 27, 2022
    Publication date: March 7, 2024
    Applicant: Cricut, Inc.
    Inventors: John Barrus CHRISTENSEN, Bryan Fred Bihlmaier, Donald Christopher Sutton, John Douglas Dalton, Ryun Bates Noble, Kyle Kenneth Johnson, Grayson Stopp, Bayden Filleul, Kurt Stalsberg, James Lynch, Norman Stevenson
  • Publication number: 20230120691
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 20, 2023
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Patent number: 11516108
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (PLD) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Grant
    Filed: December 20, 2020
    Date of Patent: November 29, 2022
    Assignee: Accedian Networks Inc.
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Publication number: 20210111983
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (PLD) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Application
    Filed: December 20, 2020
    Publication date: April 15, 2021
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Patent number: 10924378
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: February 16, 2021
    Assignee: Accedian Networks Inc.
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Patent number: 10419325
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: September 17, 2019
    Assignee: Accedian Networks Inc.
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Publication number: 20190280958
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Publication number: 20180324078
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Application
    Filed: July 11, 2018
    Publication date: November 8, 2018
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Patent number: 10038620
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: July 31, 2018
    Assignee: Accedian Networks Inc.
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Publication number: 20170222911
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 3, 2017
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Patent number: 9660896
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: May 23, 2017
    Assignee: Accedian Networks Inc.
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Patent number: 9538700
    Abstract: A material spreader attached to and towed by an agricultural vehicle for spreading material such as organic material and fertilizers over a ground surface. The material spreader having a containment box and a material expeller, the expeller having rotating flails positioned along a substantially vertical axis with one or more sets of paddles swingably connected to the flails and the paddles are axially spaced apart along the flail above and below the material spreader floor a desired distance to enhance flow-through of rocks, manure and other organic material and fertilizers.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: January 10, 2017
    Assignee: Degelman Industries Ltd.
    Inventors: Donald Stevenson, Miles Evans, Scott R. Degelman, Trent Benko
  • Publication number: 20160237264
    Abstract: The invention pertains generally to an improved polymer composition which contains at least one liquid polymeric polyphosphite additive containing no alkylphenols. Alkylphenol-free polymeric polyphosphites offer distinct advantages over conventional phosphite technology in polyolefin films. Polymeric polyphosphites offer improved performance in regards to the prevention of color formation during high temperature processing, NOx aging, and gamma irradiation.
    Type: Application
    Filed: April 26, 2016
    Publication date: August 18, 2016
    Applicant: Dover Chemical Corporation
    Inventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson, John T. Regula, Jacob J. Weingart
  • Patent number: 9382201
    Abstract: A composition having a compound having the structure: wherein n is an integer greater than or equal to 1; wherein X is an alkyl moiety or aryl moiety; wherein X1 is an alkyl moiety or aryl moiety; wherein Y is an alkyl moiety or aryl moiety, having a carbon number that is greater than or equal to 0, and wherein if Y has a carbon number of 0, the compound has the structure:
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: July 5, 2016
    Assignee: Dover Chemical Corporation
    Inventors: Donald Stevenson, John Nussbaumer, Louis E. Bona
  • Publication number: 20160072694
    Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.
    Type: Application
    Filed: March 18, 2015
    Publication date: March 10, 2016
    Inventors: Stephane St-Laurent, Donald Stevenson
  • Publication number: 20150203636
    Abstract: A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain.
    Type: Application
    Filed: March 16, 2015
    Publication date: July 23, 2015
    Applicant: DOVER CHEMICAL CORPORATION
    Inventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson
  • Patent number: 8981042
    Abstract: A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: March 17, 2015
    Assignee: Dover Chemical Corporation
    Inventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson
  • Publication number: 20140350290
    Abstract: A composition having a compound having the structure: wherein n is an integer greater than or equal to 1; wherein X is an alkyl moiety or aryl moiety; wherein X1 is an alkyl moiety or aryl moiety; wherein Y is an alkyl moiety or aryl moiety, having a carbon number that is greater than or equal to 0, and wherein if Y has a carbon number of 0, the compound has the structure:
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Inventors: Donald STEVENSON, John NUSSBAUMER, Louis E. BONA
  • Publication number: 20140068165
    Abstract: A method is provided for exchanging large amounts of memory within an operating system containing consumer and producer threads located in a user space and a kernel space, by controlling ownership of a plurality of RAM banks shared by multiple processes or threads in a consumer-producer relationship. The method includes sharing at least two RAM banks between a consumer process or thread and a producer process or thread, thereby allowing memory to be exchanged between said consumer process or thread and said producer process or thread, and alternately assigning ownership of a shared RAM bank to either said consumer process or thread or said producer process or thread, thereby allowing said producer process or thread to insert data into said shared RAM bank and said consumer process or thread to access data from said shared RAM bank.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 6, 2014
    Applicant: Accedian Networks Inc.
    Inventors: Thierry DeCorte, Donald Stevenson