Patents by Inventor Scott A. Roberts
Scott A. Roberts 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: 12220485Abstract: A method of producing a lipid-encapsulated RNA nanoparticle, comprising the steps a) flowing an aqueous solution comprising an RNA through a 1st tube having an inner diameter (ID) of between about 0.1? and 0.132?; b) flowing an ethanol solution comprising lipids through a 2nd tube having an ID of between about 0.005? and 0.02? at one third the flow rate of the aqueous solution through the 1st tube, wherein the lipids comprise a cationic lipid; and c) mixing the ethanol solution with the aqueous solution by flowing the ethanol solution and the aqueous solution into a mixing module consisting of the 2nd tube perpendicularly joined to the 1st tube; wherein the mixing produces an output solution flowing in the 1st tube comprising a turbulent flow of the RNA and the lipids in between about 10% to 75% ethanol v/v, and wherein the lipid-encapsulated RNA nanoparticles have a bilayer structure.Type: GrantFiled: August 28, 2023Date of Patent: February 11, 2025Assignee: Arcturus Therapeutics, Inc.Inventors: Priya Karmali, Padmanabh Chivukula, Joseph E. Payne, Yanjie Bao, Michael Figa, Scott A. Roberts, Andreas Wagner
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Publication number: 20230398076Abstract: A method of producing a lipid-encapsulated RNA nanoparticle, comprising the steps a) flowing an aqueous solution comprising an RNA through a 1st tube having an inner diameter (ID) of between about 0.1? and 0.132?; b) flowing an ethanol solution comprising lipids through a 2nd tube having an ID of between about 0.005? and 0.02? at one third the flow rate of the aqueous solution through the 1st tube, wherein the lipids comprise a cationic lipid; and c) mixing the ethanol solution with the aqueous solution by flowing the ethanol solution and the aqueous solution into a mixing module consisting of the 2nd tube perpendicularly joined to the 1st tube; wherein the mixing produces an output solution flowing in the 1st tube comprising a turbulent flow of the RNA and the lipids in between about 10% to 75% ethanol v/v, and wherein the lipid-encapsulated RNA nanoparticles have a bilayer structure.Type: ApplicationFiled: August 28, 2023Publication date: December 14, 2023Inventors: Priya Karmali, Padmanabh Chivukula, Joseph E. Payne, Yanjie Bao, Michael Figa, Scott A. Roberts, Andreas Wagner
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Patent number: 9231908Abstract: Aspects of the subject matter described herein relate to symmetric routing to a private network. In aspects, a remote client may try to connect to an entity of a private network using a non-routable network address. Upon detecting that connectivity is not established or not possible via a given network address, the client may obtain network data associated with a gateway that provides access to the private network and create a virtual interface where the gateway is the next-hop router. After creating the virtual interface, the client may communicate with entities of the private network using the virtual interface of the client. By sending traffic through the virtual interface with a source address having a prefix associated with the gateway, the client may ensure that traffic sent to and from the private network traverses the gateway.Type: GrantFiled: February 8, 2012Date of Patent: January 5, 2016Assignee: Microsoft Technology Licensing, LLCInventors: Yaniv Naor, Dmitry A. Anipko, Sharad Kylasam, Scott A. Roberts
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Patent number: 8962906Abstract: A filter column apparatus comprising a filtration zone and a reslurry zone. These zones are separated by a barrier wall or are in substantial cooperation with each other. Also disclosed is a process for separating at least a portion of at least one substantially solid component from a solid-liquid stream comprising the substantially solid component and at least one substantially liquid component. Also disclosed is a process for forming a substantially solids containing packed bed. Also disclosed is a process for purifying paraxylene in a filtration zone.Type: GrantFiled: September 20, 2010Date of Patent: February 24, 2015Assignee: BP Corporation North America Inc.Inventors: Richard A Wilsak, Scott A Roberts, Dean B. Comstock, Ronald D Stefanski
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Patent number: 8530716Abstract: Processes for separating a solid from a solids-liquids slurry under conditions that prevent ingress of molecular oxygen are advantageous where the presence of molecular oxygen would otherwise reduce efficiencies, contribute to limited product yields, and potentially compromise safe operation of the process or downstream unit operations. Among the various embodiments disclosed herein, is a process utilizing filter columns as solid-liquid separators in combination with crystallization and reslurry unit operations to recover a product component from an initial feed mixture of miscible components. Embodiments of the disclosed processes may include the separation and purification of a product component using a crystallizer in series with a filter column followed by a chemical reactor, using a reslurry drum in series with a filter column, and using a combination of crystallizers and/or reslurry drums in series with at least one filter column.Type: GrantFiled: August 14, 2008Date of Patent: September 10, 2013Assignee: BP Corporation North America Inc.Inventors: Richard A. Wilsak, Scott A. Roberts, Rose M. Janulis
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Publication number: 20130205040Abstract: Aspects of the subject matter described herein relate to symmetric routing to a private network. In aspects, a remote client may try to connect to an entity of a private network using a non-routable network address. Upon detecting that connectivity is not established or not possible via a given network address, the client may obtain network data associated with a gateway that provides access to the private network and create a virtual interface where the gateway is the next-hop router. After creating the virtual interface, the client may communicate with entities of the private network using the virtual interface of the client. By sending traffic through the virtual interface with a source address having a prefix associated with the gateway, the client may ensure that traffic sent to and from the private network traverses the gateway.Type: ApplicationFiled: February 8, 2012Publication date: August 8, 2013Applicant: MICROSOFT CORPORATIONInventors: Yaniv Naor, Dmitry A. Anipko, Sharad Kylasam, Scott A. Roberts
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Patent number: 8211319Abstract: A process for separating solids from liquids in a filtration zone defined by a higher concentration zone and a lower concentration zone separated by a filter. The process includes the steps of directing a slurry feed comprising a liquid and solids into the higher concentration zone, directing a displacement fluid to the higher concentration zone and passing at least a portion of the liquid through a filter to the filtrate zone, producing a filtrate.Type: GrantFiled: September 16, 2003Date of Patent: July 3, 2012Assignee: BP Corporation North America Inc.Inventors: Richard A. Wilsak, Scott A. Roberts, Dean B. Comstock, Ronald Stefanski, George A. Huff
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Publication number: 20110006008Abstract: A filter column apparatus comprising a filtration zone and a reslurry zone. These zones are separated by a barrier wall or are in substantial cooperation with each other. Also disclosed is a process for separating at least a portion of at least one substantially solid component from a solid-liquid stream comprising the substantially solid component and at least one substantially liquid component. Also disclosed is a process for forming a substantially solids containing packed bed. Also disclosed is a process for purifying paraxylene in a filtration zone.Type: ApplicationFiled: September 20, 2010Publication date: January 13, 2011Applicant: BP Corporation North America Inc.Inventors: Richard A Wilsak, Scott A. Roberts, Dean B. Comstock, Ronald D. Stefanski
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Patent number: 7812206Abstract: A filter column apparatus comprising a filtration zone and a reslurry zone. These zones are separated by a barrier wall or are in substantial cooperation with each other. Also disclosed is a process for separating at least a portion of at least one substantially solid component from a solid-liquid stream comprising the substantially solid component and at least one substantially liquid component. Also disclosed is a process for forming a substantially solids containing packed bed. Also disclosed is a process for purifying paraxylene in a filtration zone.Type: GrantFiled: March 21, 2006Date of Patent: October 12, 2010Assignee: BP Corporation North America Inc.Inventors: Richard A. Wilsak, Scott A. Roberts, Dean B. Comstock, Ronald D. Stefanski
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Publication number: 20100041936Abstract: Processes for separating a solid from a solids-liquids slurry under conditions that prevent ingress of molecular oxygen are advantageous where the presence of molecular oxygen would otherwise reduce efficiencies, contribute to limited product yields, and potentially compromise safe operation of the process or downstream unit operations. Among the various embodiments disclosed herein, is a process utilizing filter columns as solid-liquid separators in combination with crystallization and reslurry unit operations to recover a product component from an initial feed mixture of miscible components. Embodiments of the disclosed processes may include the separation and purification of a product component using a crystallizer in series with a filter column followed by a chemical reactor, using a reslurry drum in series with a filter column, and using a combination of crystallizers and/or reslurry drums in series with at least one filter column.Type: ApplicationFiled: August 14, 2008Publication date: February 18, 2010Applicant: BP Corporation North America Inc.Inventors: Richard A. Wilsak, Scott A. Roberts, Rose M. Janulis
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Patent number: 6600083Abstract: A pressure swing adsorption process to separate para-xylene and ethylbenzene from C8 aromatics which uses a para-selective, non-acidic, medium pore molecular sieve of the MFI structure type and is operated isothermally in the vapor phase at elevated temperatures and pressures is integrated with crystallization to produce para-xylene product. A fixed bed of adsorbent is saturated with pX and EB, which are preferentially adsorbed, the feed is stopped, and lowering the partial pressure desorbs the pX and EB. The process effluent, which is rich in pX and EB, is crystallized to obtain para-xylene product.Type: GrantFiled: July 10, 2001Date of Patent: July 29, 2003Assignee: BP Corporation North America Inc.Inventors: Ruth Ann Doyle, Jeffrey T. Miller, Richard A. Wilsak, Scott A. Roberts, Giorgio Zoia
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Publication number: 20020107427Abstract: A pressure swing adsorption process to separate para-xylene and ethylbenzene from C8 aromatics which uses a para-selective, non-acidic, medium pore molecular sieve of the MFI structure type and is operated isothermally in the vapor phase at elevated temperatures and pressures is integrated with crystallization to produce para-xylene product. A fixed bed of adsorbent is saturated with pX and EB, which are preferentially adsorbed, the feed is stopped, and lowering the partial pressure desorbs the pX and EB. The process effluent, which is rich in pX and EB, is crystallized to obtain para-xylene product.Type: ApplicationFiled: July 10, 2001Publication date: August 8, 2002Inventors: Ruth Ann Doyle, Jeffrey T. Miller, Richard A. Wilsak, Scott A. Roberts, Giorgio Zoia