Patents by Inventor Roger A. Nassar
Roger A. Nassar 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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Publication number: 20230356168Abstract: The present invention is generally directed to beads, methods of making said beads, and methods of functionalizing said beads with one or more functional groups to form functionalized beads, such as universal functionalized beads, wherein the functional group can be a chemical group. In some embodiments, the beads can be gel beads.Type: ApplicationFiled: December 18, 2020Publication date: November 9, 2023Applicant: RAN Biotechnologies, Inc.Inventors: Robert E. Lintner, Roger A. Nassar
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Patent number: 11578351Abstract: Methods of detecting biologicals in samples is provided herein. The detection is based on the formation of aggregates. The disclosed compositions include labeling particles and/or aggregating particles. The labeling particles and the aggregating particles may each include a receptor bound to the particle. The receptor can be either directly attached to the particle or indirectly attached to the particle through a linker. One method of detection may be visual and another may include advanced quantification of the formed aggregates.Type: GrantFiled: April 13, 2020Date of Patent: February 14, 2023Assignee: RAN Biotechnologies, Inc.Inventor: Roger A. Nassar
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Patent number: 11505648Abstract: The present disclosure provides amphiphilic fluorinated surfactant molecules for lowering the surface tension of aqueous, hydrocarbon, or solid phases in the presence of a fluorophilic continuous phase and for selectively interacting with biological and/or chemical molecules.Type: GrantFiled: April 20, 2016Date of Patent: November 22, 2022Assignee: RAN Biotechnologies, Inc.Inventor: Roger A. Nassar
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Publication number: 20220135962Abstract: The present invention is directed to synthesizing and using fluid-insoluble material complexes that capture biologicals and remove them from samples in microscopic scale fluids, such as in droplets, wells, and micro-wells. The present invention also pertains to the option of detecting the captured biologicals, to the option of modifying the captured biologicals, and to the option of controllably releasing the captured biologicals.Type: ApplicationFiled: April 17, 2020Publication date: May 5, 2022Applicant: RAN Biotechnologies, Inc.Inventors: Roger A. Nassar, Robert E. Lintner
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Patent number: 11123708Abstract: Material complexes that capture biologicals and methods of synthesizing and using such complexes composed of fluid-insoluble material and a receptor are provided herewith. The fluid-insoluble material has reactive functionality on its surface, including hydroxyl, amino, mercapto or eposy functionality material. The material can be agarose, sand, textile, or any combination thereof. The receptor is selected from the group consisting of mono-and poly-saccharides, heparin, or any combination thereof. Also provide are methods whereby releasing the captured biologicals and is controllable.Type: GrantFiled: September 13, 2018Date of Patent: September 21, 2021Assignee: RAN Biotechnologies, Inc.Inventor: Roger A. Nassar
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Publication number: 20200239929Abstract: Methods of detecting biologicals in samples is provided herein. The detection is based on the formation of aggregates. The disclosed compositions include labeling particles and/or aggregating particles. The labeling particles and the aggregating particles may each include a receptor bound to the particle. The receptor can be either directly attached to the particle or indirectly attached to the particle through a linker. One method of detection may be visual and another may include advanced quantification of the formed aggregates.Type: ApplicationFiled: April 13, 2020Publication date: July 30, 2020Inventor: Roger A. Nassar
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Patent number: 10640804Abstract: Methods of detecting biologicals in samples is provided herein. The detection is based on the formation of aggregates. The disclosed compositions include labeling particles and/or aggregating particles. The labeling particles and the aggregating particles may each include a receptor bound to the particle. The receptor can be either directly attached to the particle or indirectly attached to the particle through a linker. One method of detection may be visual and another may include advanced quantification of the formed aggregates.Type: GrantFiled: March 13, 2014Date of Patent: May 5, 2020Assignee: RAN Biotechnologies, Inc.Inventor: Roger A. Nassar
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Publication number: 20190076818Abstract: Material complexes that capture biologicals and methods of synthesizing and using such complexes composed of fluid-insoluble material and a receptor are provided herewith. The fluid-insoluble material has reactive functionality on its surface, including hydroxyl, amino, mercapto or eposy functionality material. The material can be agarose, sand, textile, or any combination thereof. The receptor is selected from the group consisting of mono-and poly-saccharides, heparin, or any combination thereof. Also provide are methods whereby releasing the captured biologicals and is controllable.Type: ApplicationFiled: September 13, 2018Publication date: March 14, 2019Inventor: Roger A. Nassar
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Patent number: 10105681Abstract: Material complexes that capture biologicals and methods of synthesizing and using such complexes composed of fluid-insoluble material and a receptor are provided herewith. The fluid-insoluble material has reactive functionality on its surface, including hydroxyl, amino, mercapto or epoxy functionality material. The material can be agarose, sand, textile, or any combination thereof. The receptor is selected from the group consisting of mono- and poly-saccharides, heparin, or any combination thereof. Also provided are methods whereby releasing the captured biologicals is controllable.Type: GrantFiled: March 13, 2014Date of Patent: October 23, 2018Assignee: Ran Biotechnologies, Inc.Inventor: Roger A. Nassar
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Patent number: 9983477Abstract: The invention relates to new polymers that comprise units that contain one or more photoacid generator groups and photoresists that contain the polymers. Preferred polymers of the invention are suitable for use in photoresists imaged at short wavelengths such as sub-250 nm or sub-200 nm, particularly 248 nm and 193 nm.Type: GrantFiled: November 22, 2010Date of Patent: May 29, 2018Assignee: Rohm and Haas Electronic Materials LLCInventors: James W. Thackeray, Roger A. Nassar
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Publication number: 20180139959Abstract: Provided is an antimicrobial substrate comprising a substrate to which is covalently bonded an antimicrobial polymer, in which the antimicrobial polymer comprises an alkylene oxide backbone to which are attached one of more alkyl and/or alkylene oxide primary and/or secondary branches, at least one of the alkyl or alkylene oxide primary and/or secondary branches is functionalized with a quarternary ammonium of a flourinated group, or at least two of the alkyl and/or alkylene oxide primary and/or secondary branches are functionalized with a quarternary ammonium and a fixed group. The antimicrobial substrate can be used, for example, in a method for protecting an object against microbial infection, microbial colorization, or microbial transinfection comprising providing to the object an antimicrobial substrate.Type: ApplicationFiled: January 8, 2018Publication date: May 24, 2018Inventors: Roger A. Nassar, Shirley Young, Marion L. Chiattello, Mark Oman
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Publication number: 20180112036Abstract: The present disclosure provides amphiphilic fluorinated surfactant molecules for lowering the surface tension of aqueous, hydrocarbon, or solid phases in the presence of a fluorophilic continuous phase and for selectively interacting with biological and/or chemical molecules.Type: ApplicationFiled: April 20, 2016Publication date: April 26, 2018Inventor: Roger A. Nassar
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Publication number: 20170361324Abstract: A viewer device for observing and recording images of materials, such as chemical and biological materials is described. The viewer device includes a housing that provides a chamber for receiving a sample or a sample container that contains a sample of a material (e.g., chemical or biological material). The housing includes a viewing window for observing the sample, a port through which the sample or the sample container can be introduced to or removed from the chamber, and a coupling mechanism configured to removably and replaceably couple the housing to an observational device, such as a camera equipped device.Type: ApplicationFiled: June 20, 2017Publication date: December 21, 2017Inventors: Roger A. Nassar, Alexander D. Turland
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Publication number: 20170000119Abstract: Provided herewith are microbicidal polymers comprising an alkylene oxide backbone comprising one or more alkyl and/or alkylene oxide primary branches, in which at least one of the alkyl and/or alkylene oxide primary branches is functionalized with a quaternary ammonium or fluorinated group, or at least two of the alkyl and/or alkylene oxide primary branches are functionalized with a quaternary ammonium and fluorinated group, the primary branches optionally contain one or more alkyl and/or alkylene oxide secondary branches that are functionalized with a quaternary ammonium or fluorinated group, compositions comprising the polymer and a carrier, and methods of using the same.Type: ApplicationFiled: December 22, 2014Publication date: January 5, 2017Inventors: Roger A. Nassar, Shirley Young, Marion L. Chiattello, Mark Oman
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Publication number: 20170000115Abstract: Provided is an antimicrobial substrate comprising a substrate to which is covalently bonded an antimicrobial polymer, in which the antimicrobial polymer comprises an alkylene oxide backbone to which are attached one or more alkyl and/or alkylene oxide primary and/or secondary branches, at least one of the alkyl or alkylene oxide primary and/or secondary branches is functionalized with a quaternary ammonium or a fluorinated group, or at least two of the alkyl and/or alkylene oxide primary and/or secondary branches are functionalized with a quaternary ammonium and a fluorinated group. The antimicrobial substrate can be used, for example, in a method for protecting an object against microbial infection, microbial colonization, or microbial transinfection comprising providing to the object an antimicrobial substrate.Type: ApplicationFiled: December 22, 2014Publication date: January 5, 2017Inventors: Roger A. Nassar, Shirley Young, Marion L. Chiattello, Mark Oman
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Publication number: 20160010136Abstract: Methods of detecting biologicals in samples is provided herein. The detection is based on the formation of aggregates. The disclosed compositions include labeling particles and/or aggregating particles. The labeling particles and the aggregating particles may each include a receptor bound to the particle. The receptor can be either directly attached to the particle or indirectly attached to the particle through a linker. One method of detection may be visual and another may include advanced quantification of the formed aggregates.Type: ApplicationFiled: March 13, 2014Publication date: January 14, 2016Applicant: RAN Biotechnologies, Inc.Inventor: Roger A. Nassar
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Publication number: 20160008788Abstract: Material complexes that capture biologicals and methods of synthesizing and using such complexes composed of fluid-insoluble material and a receptor are provided herewith. The fluid-insoluble material has reactive functionality on its surface, including hydroxyl, amino, mercapto or epoxy functionality material. The material can be agarose, sand, textile, or any combination thereof. The receptor is selected from the group consisting of mono- and poly-saccharides, heparin, or any combination thereof. Also provided are methods whereby releasing the captured biologicals is controllable.Type: ApplicationFiled: March 13, 2014Publication date: January 14, 2016Inventor: Roger A. NASSAR
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Publication number: 20110236823Abstract: The invention relates to new polymers that comprise units that contain one or more photoacid generator groups and photoresists that contain the polymers. Preferred polymers of the invention are suitable for use in photoresists imaged at short wavelengths such as sub-250 nm or sub-200 nm, particularly 248 nm and 193 nm.Type: ApplicationFiled: November 22, 2010Publication date: September 29, 2011Applicant: Rohm and Haas Electronic Materials LLCInventors: James W. Thackeray, Roger A. Nassar
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Patent number: 7838199Abstract: The invention relates to new polymers that comprise units that contain one or more photoacid generator groups and photoresists that contain the polymers. Preferred polymers of the invention are suitable for use in photoresists imaged at short wavelengths such as sub-250 nm or sub-200 nm, particularly 248 nm and 193 nm.Type: GrantFiled: February 28, 2008Date of Patent: November 23, 2010Assignee: Rohm and Haas Electronic Materials LLCInventors: James W. Thackeray, Roger A. Nassar
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Publication number: 20080206671Abstract: The invention relates to new polymers that comprise units that contain one or more photoacid generator groups and photoresists that contain the polymers. Preferred polymers of the invention are suitable for use in photoresists imaged at short wavelengths such as sub-250 nm or sub-200 nm, particularly 248 nm and 193 nm.Type: ApplicationFiled: February 28, 2008Publication date: August 28, 2008Applicant: Rohm and Haas Electronic Materials LLCInventors: James Thackeray, Roger Nassar