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).
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Patent number: 11920430Abstract: 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: GrantFiled: December 30, 2021Date of Patent: March 5, 2024Assignee: Halliburton Energy Services, Inc.Inventors: Paul Rennison, Roger Clark, Geir Jørgensen, Robert Walker, Kristoffer Landre, Katherine Davies
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Patent number: 11913954Abstract: 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: GrantFiled: February 8, 2021Date of Patent: February 27, 2024Assignee: Bio-Rad Laboratories, Inc.Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
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Patent number: 11262366Abstract: 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: GrantFiled: September 27, 2018Date of Patent: March 1, 2022Assignee: Bio-Rad Laboratories, Inc.Inventors: Roger Walker, Benedicte Jardin
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Patent number: 11209113Abstract: 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: GrantFiled: October 20, 2020Date of Patent: December 28, 2021Assignee: CSC OPERATING COMPANY, LLCInventors: Roger Walker, Timothy Scott Mally, R. Eric Locke, Mahdi Kiani
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Patent number: 11209112Abstract: 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: GrantFiled: February 25, 2020Date of Patent: December 28, 2021Assignee: CSC OPERATING COMPANY, LLCInventors: Roger Walker, Timothy Scott Mally, R. Eric Locke, Mahdi Kiani
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Publication number: 20210156859Abstract: 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: ApplicationFiled: February 8, 2021Publication date: May 27, 2021Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
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Patent number: 10942182Abstract: 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: GrantFiled: March 27, 2020Date of Patent: March 9, 2021Assignee: Bio-Rad Laboratories, Inc.Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
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Patent number: 10921315Abstract: 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: GrantFiled: June 8, 2017Date of Patent: February 16, 2021Assignee: Bio-Rad Laboratories, Inc.Inventors: Roger Walker, Yabin Lu, Urvee Desai, Daming Shan
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Publication number: 20210033238Abstract: 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: ApplicationFiled: October 20, 2020Publication date: February 4, 2021Applicant: Cowboy Acquisition, LLCInventors: Roger WALKER, Timothy Scott MALLY, R. Eric LOCKE, Mahdi KIANI
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Publication number: 20200225230Abstract: 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: ApplicationFiled: March 27, 2020Publication date: July 16, 2020Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
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Publication number: 20200191315Abstract: 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: ApplicationFiled: February 25, 2020Publication date: June 18, 2020Applicant: Cowboy Acquisition, LLCInventors: Roger WALKER, Timothy Scott MALLY, R. Eric LOCKE, Mahdi KIANI
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Patent number: 10648981Abstract: 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: GrantFiled: May 7, 2019Date of Patent: May 12, 2020Assignee: Bio-Rad Laboratories, Inc.Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
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Patent number: 10612713Abstract: 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: GrantFiled: March 14, 2018Date of Patent: April 7, 2020Assignee: COWBOY ACQUISITION, LLCInventors: Roger Walker, Timothy Scott Mally, R. Eric Locke, Mahdi Kiani
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Publication number: 20190265240Abstract: 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: ApplicationFiled: May 7, 2019Publication date: August 29, 2019Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
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Patent number: 10324091Abstract: 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: GrantFiled: September 11, 2017Date of Patent: June 18, 2019Assignee: Bio-Rad Laboratories, Inc.Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
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Publication number: 20190018023Abstract: 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: ApplicationFiled: September 27, 2018Publication date: January 17, 2019Inventors: Roger Walker, Benedicte Jardin
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Patent number: 10088488Abstract: 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: GrantFiled: February 24, 2017Date of Patent: October 2, 2018Assignee: Bio-Rad Laboratories, Inc.Inventors: Roger Walker, Benedicte Jardin
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Publication number: 20180266613Abstract: 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: ApplicationFiled: March 14, 2018Publication date: September 20, 2018Applicant: Cowboy Acquisition, LLCInventors: Roger Walker, Timothy Scott Mally, R. Eric Locke, Mahdi Kiani
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Patent number: 10067135Abstract: 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: GrantFiled: February 14, 2018Date of Patent: September 4, 2018Assignee: Bio-Rad Laboratories, Inc.Inventors: Ravi Kaul, Weiming Zheng, Roger Walker
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Publication number: 20180172687Abstract: 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: ApplicationFiled: February 14, 2018Publication date: June 21, 2018Inventors: Ravi Kaul, Weiming Zheng, Roger Walker