Patents by Inventor Roger Walker

Roger Walker 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: 11920430
    Abstract: A wellbore anchoring device having an adjustable injection valve is disclosed. The anchoring device can include the adjustable injection valve and a spring. The spring can be positioned adjacent to the adjustable injection valve. The spring can include an initial pressure setting that is adjustable prior to the anchoring device being positioned in a wellbore to adjust a cracking pressure of the adjustable injection valve.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: March 5, 2024
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul Rennison, Roger Clark, Geir Jørgensen, Robert Walker, Kristoffer Landre, Katherine Davies
  • Patent number: 11913954
    Abstract: Provided herein are multiplex assays for detecting antibodies indicative of presence and stage of syphilis infection in an individual. Individuals infected with syphilis produce antibodies directed to syphilis components and the lipid cellular debris associated with the infection. The present disclosure represents the first combination of these diverse antibody targets in a single assay.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: February 27, 2024
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
  • Patent number: 11262366
    Abstract: Hemoglobin, its variants, and glycated forms of each are determined individually in a multiplex assay that permits correction of the measured level of HbA1c to account for glycated variants and other factors related to the inclusion of the variants in the sample. New antibodies that are particularly well adapted to the multiplex assay are also provided.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 1, 2022
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Roger Walker, Benedicte Jardin
  • Patent number: 11209113
    Abstract: A reinforced pipe and a method of preparing the reinforced pipe are provided. The reinforced pipe has repair area where a circumferential defect is present in a center section of the repair area. The reinforced pipe comprises a unidirectional fabric circumferentially wrapped around the repair area of the pipe so as to result in multiple layers of the unidirectional fabric around the repair area. The unidirectional fabric is composed of high-performance fibers with at least 90% of the high-performance fibers oriented in the 90° direction, and the unidirectional fabric is wrapped such that the high-performance fibers run in the axial direction. The reinforced pipe further comprises a bidirectional fabric wrapped of over the unidirectional fabric such the at least one layer of bidirectional fabric is wrapped over the unidirectional fabric.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: December 28, 2021
    Assignee: CSC OPERATING COMPANY, LLC
    Inventors: Roger Walker, Timothy Scott Mally, R. Eric Locke, Mahdi Kiani
  • Patent number: 11209112
    Abstract: A reinforced pipe and a method of preparing the reinforced pipe are provided. The reinforced pipe has repair area where a wrinkle bend is present in a center section of the repair area. The reinforced pipe comprises a unidirectional fabric circumferentially wrapped around the repair area of the pipe so as to result in multiple layers of the unidirectional fabric around the repair area. The unidirectional fabric is composed of high-performance fibers with at least 90% of the high-performance fibers oriented in the 90° direction, and the unidirectional fabric is wrapped such that the high-performance fibers run in the axial direction. The reinforced pipe further comprises a bidirectional fabric wrapped of over the unidirectional fabric such the at least one layer of bidirectional fabric is wrapped over the unidirectional fabric.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: December 28, 2021
    Assignee: CSC OPERATING COMPANY, LLC
    Inventors: Roger Walker, Timothy Scott Mally, R. Eric Locke, Mahdi Kiani
  • Publication number: 20210156859
    Abstract: Provided herein are multiplex assays for detecting antibodies indicative of presence and stage of syphilis infection in an individual. Individuals infected with syphilis produce antibodies directed to syphilis components and the lipid cellular debris associated with the infection. The present disclosure represents the first combination of these diverse antibody targets in a single assay.
    Type: Application
    Filed: February 8, 2021
    Publication date: May 27, 2021
    Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
  • Patent number: 10942182
    Abstract: Provided herein are multiplex assays for detecting antibodies indicative of presence and stage of syphilis infection in an individual. Individuals infected with syphilis produce antibodies directed to syphilis components and the lipid cellular debris associated with the infection. The present disclosure represents the first combination of these diverse antibody targets in a single assay.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 9, 2021
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
  • Patent number: 10921315
    Abstract: Methods of diagnosing celiac disease in a subject are provided. In some embodiments, the method comprises contacting a sample of bodily fluid from the subject with an antigen comprising a recombinant or synthetic deamidated gliadin protein, wherein the deamidated gliadin protein comprises a hexamer of peptides each having the sequence of SEQ ID NO:1; and detecting an antibody from the sample that specifically binds to the antigen, thereby diagnosing celiac disease in the subject.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: February 16, 2021
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Roger Walker, Yabin Lu, Urvee Desai, Daming Shan
  • Publication number: 20210033238
    Abstract: A reinforced pipe and a method of preparing the reinforced pipe are provided. The reinforced pipe has repair area where a circumferential defect is present in a center section of the repair area. The reinforced pipe comprises a unidirectional fabric circumferentially wrapped around the repair area of the pipe so as to result in multiple layers of the unidirectional fabric around the repair area. The unidirectional fabric is composed of high-performance fibers with at least 90% of the high-performance fibers oriented in the 90° direction, and the unidirectional fabric is wrapped such that the high-performance fibers run in the axial direction. The reinforced pipe further comprises a bidirectional fabric wrapped of over the unidirectional fabric such the at least one layer of bidirectional fabric is wrapped over the unidirectional fabric.
    Type: Application
    Filed: October 20, 2020
    Publication date: February 4, 2021
    Applicant: Cowboy Acquisition, LLC
    Inventors: Roger WALKER, Timothy Scott MALLY, R. Eric LOCKE, Mahdi KIANI
  • Publication number: 20200225230
    Abstract: Provided herein are multiplex assays for detecting antibodies indicative of presence and stage of syphilis infection in an individual. Individuals infected with syphilis produce antibodies directed to syphilis components and the lipid cellular debris associated with the infection. The present disclosure represents the first combination of these diverse antibody targets in a single assay.
    Type: Application
    Filed: March 27, 2020
    Publication date: July 16, 2020
    Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
  • Publication number: 20200191315
    Abstract: A reinforced pipe and a method of preparing the reinforced pipe are provided. The reinforced pipe has repair area where a wrinkle bend is present in a center section of the repair area. The reinforced pipe comprises a unidirectional fabric circumferentially wrapped around the repair area of the pipe so as to result in multiple layers of the unidirectional fabric around the repair area. The unidirectional fabric is composed of high-performance fibers with at least 90% of the high-performance fibers oriented in the 90° direction, and the unidirectional fabric is wrapped such that the high-performance fibers run in the axial direction. The reinforced pipe further comprises a bidirectional fabric wrapped of over the unidirectional fabric such the at least one layer of bidirectional fabric is wrapped over the unidirectional fabric.
    Type: Application
    Filed: February 25, 2020
    Publication date: June 18, 2020
    Applicant: Cowboy Acquisition, LLC
    Inventors: Roger WALKER, Timothy Scott MALLY, R. Eric LOCKE, Mahdi KIANI
  • Patent number: 10648981
    Abstract: Provided herein are multiplex assays for detecting antibodies indicative of presence and stage of syphilis infection in an individual. Individuals infected with syphilis produce antibodies directed to syphilis components and the lipid cellular debris associated with the infection. The present disclosure represents the first combination of these diverse antibody targets in a single assay.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: May 12, 2020
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
  • Patent number: 10612713
    Abstract: A reinforced pipe and a method of preparing the reinforced pipe are provided. The reinforced pipe has repair area where a wrinkle bend is present in a center section of the repair area. The reinforced pipe comprises a unidirectional fabric circumferentially wrapped around the repair area of the pipe so as to result in multiple layers of the unidirectional fabric around the repair area. The unidirectional fabric is composed of high-performance fibers with at least 90% of the high-performance fibers oriented in the 90° direction, and the unidirectional fabric is wrapped such that the high-performance fibers run in the axial direction. The reinforced pipe further comprises a bidirectional fabric wrapped of over the unidirectional fabric such the at least one layer of bidirectional fabric is wrapped over the unidirectional fabric.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 7, 2020
    Assignee: COWBOY ACQUISITION, LLC
    Inventors: Roger Walker, Timothy Scott Mally, R. Eric Locke, Mahdi Kiani
  • Publication number: 20190265240
    Abstract: Provided herein are multiplex assays for detecting antibodies indicative of presence and stage of syphilis infection in an individual. Individuals infected with syphilis produce antibodies directed to syphilis components and the lipid cellular debris associated with the infection. The present disclosure represents the first combination of these diverse antibody targets in a single assay.
    Type: Application
    Filed: May 7, 2019
    Publication date: August 29, 2019
    Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
  • Patent number: 10324091
    Abstract: Provided herein are multiplex assays for detecting antibodies indicative of presence and stage of syphilis infection in an individual. Individuals infected with syphilis produce antibodies directed to syphilis components and the lipid cellular debris associated with the infection. The present disclosure represents the first combination of these diverse antibody targets in a single assay.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: June 18, 2019
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
  • Publication number: 20190018023
    Abstract: Hemoglobin, its variants, and glycated forms of each are determined individually in a multiplex assay that permits correction of the measured level of HbA1c to account for glycated variants and other factors related to the inclusion of the variants in the sample. New antibodies that are particularly well adapted to the multiplex assay are also provided.
    Type: Application
    Filed: September 27, 2018
    Publication date: January 17, 2019
    Inventors: Roger Walker, Benedicte Jardin
  • Patent number: 10088488
    Abstract: Hemoglobin, its variants, and glycated forms of each are determined individually in a multiplex assay that permits correction of the measured level of HbA1c to account for glycated variants and other factors related to the inclusion of the variants in the sample. New antibodies that are particularly well adapted to the multiplex assay are also provided.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: October 2, 2018
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Roger Walker, Benedicte Jardin
  • Publication number: 20180266613
    Abstract: A reinforced pipe and a method of preparing the reinforced pipe are provided. The reinforced pipe has repair area where a wrinkle bend is present in a center section of the repair area. The reinforced pipe comprises a unidirectional fabric circumferentially wrapped around the repair area of the pipe so as to result in multiple layers of the unidirectional fabric around the repair area. The unidirectional fabric is composed of high-performance fibers with at least 90% of the high-performance fibers oriented in the 90° direction, and the unidirectional fabric is wrapped such that the high-performance fibers run in the axial direction. The reinforced pipe further comprises a bidirectional fabric wrapped of over the unidirectional fabric such the at least one layer of bidirectional fabric is wrapped over the unidirectional fabric.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Applicant: Cowboy Acquisition, LLC
    Inventors: Roger Walker, Timothy Scott Mally, R. Eric Locke, Mahdi Kiani
  • Patent number: 10067135
    Abstract: Provided herein are multiplex assays for determining whether an individual is or has been infected with Hepatitis B virus, and the stage of infection or resolution. In addition, the multiplex system can discriminate between vaccinated subjects and subjects susceptible to Hepatitis B infection.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: September 4, 2018
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
  • Publication number: 20180172687
    Abstract: Provided herein are multiplex assays for determining whether an individual is or has been infected with Hepatitis B virus, and the stage of infection or resolution. In addition, the multiplex system can discriminate between vaccinated subjects and subjects susceptible to Hepatitis B infection.
    Type: Application
    Filed: February 14, 2018
    Publication date: June 21, 2018
    Inventors: Ravi Kaul, Weiming Zheng, Roger Walker