Patents by Inventor Andrew W. Rabins
Andrew W. Rabins 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: 10240018Abstract: A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration device comprising a sintered porous polymer matrix comprising at least one concentration agent that comprises an amorphous metal silicate and that has a surface composition having a metal atom to silicon atom ratio of less than or equal to 0.5, as determined by X-ray photoelectron spectroscopy (XPS); (b) providing a sample comprising at least one microorganism strain; and (c) contacting the concentration device with the sample such that at least a portion of the at least one microorganism strain is bound to or captured by the concentration device.Type: GrantFiled: January 22, 2015Date of Patent: March 26, 2019Assignee: 3M Innovative Properties CompanyInventors: Manjiri T. Kshirsagar, Andrew W. Rabins
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Publication number: 20180312939Abstract: Provided are methods and related compositions for separating immiscible organic and aqueous compositions. The methods include dispersing a discrete, insoluble filler in the organic composition, dispersing the organic composition into the aqueous composition, separating under gravity the organic and aqueous compositions into respective upper and lower layers. Advantageously, the insoluble filler remains in the organic composition and facilitates segregation and coalescence of droplets of the organic composition in the aqueous composition.Type: ApplicationFiled: October 18, 2016Publication date: November 1, 2018Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Michael J. Sierakowski, Andrew W. Rabins, Karl D. Weilandt, Clinton P. Waller, Jr., Mikhail A. Belkin, Susannah C. Clear, Tien Yi T.H. Whiting
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Publication number: 20180224360Abstract: A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration device comprising a sintered porous polymer matrix comprising at least one concentration agent that comprises diatomaceous earth bearing, on at least a portion of its surface, a surface treatment comprising a surface modifier comprising ferric oxide, titanium dioxide, fine-nanoscale gold or platinum, or a combination thereof; (b) providing a sample comprising at least one microorganism strain; and (c) contacting the concentration device with the sample such that at least a portion of the at least one microorganism strain is bound to or captured by the concentration device.Type: ApplicationFiled: April 4, 2018Publication date: August 9, 2018Inventors: Manjiri T. Kshirsagar, Andrew W. Rabins
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Publication number: 20180128722Abstract: A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration device comprising (1) a porous fibrous nonwoven matrix and (2) a plurality of particles of at least one concentration agent that comprises a metal silicate, the particles being enmeshed in the porous fibrous nonwoven matrix; (b) providing a sample comprising at least one target cellular analyte; (c) contacting the concentration device with the sample such that at least a portion of the at least one target cellular analyte is bound to or captured by the concentration device; and (d) detecting the presence of at least one bound target cellular analyte.Type: ApplicationFiled: December 21, 2017Publication date: May 10, 2018Inventors: Manjiri T. Kshirsagar, Andrew W. Rabins
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Patent number: 9964474Abstract: A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration device comprising a sintered porous polymer matrix comprising at least one concentration agent that comprises diatomaceous earth bearing, on at least a portion of its surface, a surface treatment comprising a surface modifier comprising ferric oxide, titanium dioxide, fine-nanoscale gold or platinum, or a combination thereof; (b) providing a sample comprising at least one microorganism strain; and (c) contacting the concentration device with the sample such that at least a portion of the at least one microorganism strain is bound to or captured by the concentration device.Type: GrantFiled: March 22, 2010Date of Patent: May 8, 2018Assignee: 3M Innovative Properties CompanyInventors: Manjiri T. Kshirsagar, Andrew W. Rabins
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Patent number: 9938559Abstract: A bismuth-containing concentration agent for microorganisms is provided. Additionally, articles that include the concentration agent and methods of concentrating a microorganism using the concentration agent are provided.Type: GrantFiled: March 4, 2013Date of Patent: April 10, 2018Assignee: 3M Innovative Properties CompanyInventors: Manjiri T. Kshirsagar, Evan Koon Lun Yuuji Hajime, Andrew W. Rabins
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Patent number: 9784653Abstract: A first apparatus for processing a liquid sample is disclosed. The apparatus includes a sample-receiving, a filtrate-receiving component, and an analyte-capture element. The apparatus forms a liquid flow path through which the sample passes, thereby causing the analyte-capture element to capture an analyte, if present. A method is disclosed whereby a liquid sample is passed through the first apparatus and the analyte-capture element is easily separated from the apparatus for further processing and detection of the analyte. A structurally-related second apparatus for processing a plurality of liquid samples, and a corresponding method of use, also is disclosed.Type: GrantFiled: February 8, 2016Date of Patent: October 10, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Wensheng Xia, Jon A. Kirschhoffer, Andrew W. Rabins
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Patent number: 9575059Abstract: A concentration agent for microorganisms is provided that contains both lanthanum and carbonate. Additionally, articles that include the concentration agent and methods of concentrating a microorganism using the concentration agent are provided.Type: GrantFiled: May 23, 2013Date of Patent: February 21, 2017Assignee: 3M Innovative Properties CompanyInventors: Manjiri T. Kshirsagar, Evan Koon Lun Yuuji Hajime, Andrew W. Rabins
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Publication number: 20160153874Abstract: A first apparatus for processing a liquid sample is disclosed. The apparatus includes a sample-receiving, a filtrate-receiving component, and an analyte-capture element. The apparatus forms a liquid flow path through which the sample passes, thereby causing the analyte-capture element to capture an analyte, if present. A method is disclosed whereby a liquid sample is passed through the first apparatus and the analyte-capture element is easily separated from the apparatus for further processing and detection of the analyte. A structurally-related second apparatus for processing a plurality of liquid samples, and a corresponding method of use, also is disclosed.Type: ApplicationFiled: February 8, 2016Publication date: June 2, 2016Inventors: WENSHENG XIA, JON A. KIRSCHHOFFER, ANDREW W. RABINS
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Patent number: 9255864Abstract: A first apparatus (100) for processing a liquid sample is disclosed. The apparatus (100) includes a sample-receiving (120), a filtrate-receiving component (150), and an analyte-capture element (170). The apparatus (100) forms a liquid flow path through which the sample passes, thereby causing the analyte-capture element (170) to capture an analyte, if present. A method is disclosed whereby a liquid sample is passed through the first (100) apparatus and the analyte-capture element (170) is easily separated from the apparatus for further processing and detection of the analyte. A structurally-related second apparatus (200) for processing a plurality of liquid samples, and a corresponding method of use, also is disclosed.Type: GrantFiled: March 5, 2012Date of Patent: February 9, 2016Assignee: 3M Innovative Properties CompanyInventors: Wensheng Xia, Jon A. Kirschhoffer, Andrew W. Rabins
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Patent number: 9056316Abstract: Semi-interpenetrating polymeric networks are described. More specifically, the semi-interpenetrating polymeric networks include at least two polymers that are closely associated. The first polymer is an ionic polymer that is not crosslinked. The second polymer is a cross-linked polymer that can be either another ionic polymer or a non-ionic polymer. Methods of making the semi-interpenetrating polymeric networks, articles containing the semi-interpenetrating polymeric networks, and methods of using the semi-interpenetrating polymeric networks are also described. The semi-interpenetrating polymeric networks can function as ion exchange resins.Type: GrantFiled: June 17, 2011Date of Patent: June 16, 2015Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Del R. Lawson, James I. Hembre, Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, Robert T. Fitzsimons, Jr., Andrew W. Rabins, Taib K. Ansera
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Publication number: 20150132740Abstract: A concentration agent for microorganisms is provided that contains both lanthanum and carbonate. Additionally, articles that include the concentration agent and methods of concentrating a microorganism using the concentration agent are provided.Type: ApplicationFiled: May 23, 2013Publication date: May 14, 2015Inventors: Manjiri T. Kshirsagar, Evan Koon Lun Yuuji Hajime, Andrew W. Rabins
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Publication number: 20150133574Abstract: A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration device comprising a sintered porous polymer matrix comprising at least one concentration agent that comprises an amorphous metal silicate and that has a surface composition having a metal atom to silicon atom ratio of less than or equal to 0.5, as determined by X-ray photoelectron spectroscopy (XPS); (b) providing a sample comprising at least one microorganism strain; and (c) contacting the concentration device with the sample such that at least a portion of the at least one microorganism strain is bound to or captured by the concentration device.Type: ApplicationFiled: January 22, 2015Publication date: May 14, 2015Inventors: Manjiri T. Kshirsagar, Andrew W. Rabins
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Publication number: 20150079582Abstract: A bismuth-containing concentration agent for microorganisms is provided. Additionally, articles that include the concentration agent and methods of concentrating a microorganism using the concentration agent are provided.Type: ApplicationFiled: March 4, 2013Publication date: March 19, 2015Inventors: Manjiri T. Kshirsagar, Evan Koon Lun Yuuji Hajime, Andrew W. Rabins
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Patent number: 8969011Abstract: A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration device comprising a sintered porous polymer matrix comprising at least one concentration agent that comprises an amorphous metal silicate and that has a surface composition having a metal atom to silicon atom ratio of less than or equal to 0.5, as determined by X-ray photoelectron spectroscopy (XPS); (b) providing a sample comprising at least one microorganism strain; and (c) contacting the concentration device with the sample such that at least a portion of the at least one microorganism strain is bound to or captured by the concentration device.Type: GrantFiled: March 22, 2010Date of Patent: March 3, 2015Assignee: 3M Innovative Properties CompanyInventors: Manjiri T. Kshirsagar, Andrew W. Rabins
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Patent number: 8956535Abstract: A single pass simulated moving bed apparatus and methods are described for continuously separating a target molecule from a liquid mixture, using a simulated moving bed system. The simulated moving bed system includes a plurality of filter cartridge modules in serial fluid communication. Each filter cartridge module includes a volume of stationary phase particulates adjacent a porous substrate layer. The volume of stationary phase particulates has a bed height of less than 1 centimeter.Type: GrantFiled: July 11, 2008Date of Patent: February 17, 2015Assignee: 3M Innovative Properties CompanyInventors: Kelly J. Gibbens, Masayuki Nakamura, Kannan Seshadri, Andrew W. Rabins, Larry J. Carson, Robert T. Fitzsimons, Jr.
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Publication number: 20130344478Abstract: A first apparatus (100) for processing a liquid sample is disclosed. The apparatus (100) includes a sample-receiving (120), a filtrate-receiving component (150), and an analyte-capture element (170). The apparatus (100) forms a liquid flow path through which the sample passes, thereby causing the analyte-capture element (170) to capture an analyte, if present. A method is disclosed whereby a liquid sample is passed through the first (100) apparatus and the analyte-capture element (170) is easily separated from the apparatus for further processing and detection of the analyte. A structurally-related second apparatus (200) for processing a plurality of liquid samples, and a corresponding method of use, also is disclosed.Type: ApplicationFiled: March 5, 2012Publication date: December 26, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Wensheng Xia, Jon A. Kirschhoffer, Andrew W. Rabins
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Publication number: 20130260370Abstract: A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration device comprising (1) a porous fibrous nonwoven matrix and (2) a plurality of particles of at least one concentration agent that comprises a metal silicate, the particles being enmeshed in the porous fibrous nonwoven matrix; (b) providing a sample comprising at least one target cellular analyte; (c) contacting the concentration device with the sample such that at least a portion of the at least one target cellular analyte is bound to or captured by the concentration device; and (d) detecting the presence of at least one bound target cellular analyte.Type: ApplicationFiled: November 30, 2011Publication date: October 3, 2013Inventors: Manjiri T. Kshirsagar, Andrew W. Rabins
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Publication number: 20130244225Abstract: A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration device comprising (1) a porous fibrous nonwoven matrix and (2) a plurality of particles of at least one concentration agent that comprises diatomaceous earth, the particles being enmeshed in the porous fibrous nonwoven matrix; (b) providing a sample comprising at least one target cellular analyte; (c) contacting the concentration device with the sample such that at least a portion of the at least one target cellular analyte is bound to or captured by the concentration device; and (d) detecting the presence of at least one bound target cellular analyte.Type: ApplicationFiled: November 23, 2011Publication date: September 19, 2013Inventors: Manjiri T. Kshirsagar, Andrew W. Rabins
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Patent number: 8459470Abstract: A grafted nonwoven substrate is disclosed having average fiber sizes of 0.7 to 15 microns, and a void volume of 50 to 95%, and a polymer comprising cationic aminoalkyl(meth)acryloyl monomer units grafted to the surface of the nonwoven substrate. The article may be used as a filter element to purify or separate target materials, such as oligonucleotides or monoclonal antibodies (MAb), from a fluid mixture.Type: GrantFiled: December 7, 2012Date of Patent: June 11, 2013Assignee: 3M Innovative Properties CompanyInventors: Douglas E. Weiss, Clinton P. Waller, Jr., Michael R. Berrigan, Andrew W. Rabins, Jeffrey A. Lucas, Kannan Seshadri, Catherine A. Bothof