Patents by Inventor Robert E. Cohen
Robert E. Cohen 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: 9506846Abstract: A microfluidic device for manipulating particles can include a substrate and one or more obstacles, each obstacle comprising a plurality of aligned nanostructures including a plurality of nanoparticles or a plurality of polymer layers, or a combination thereof. The obstacle on a substrate can be forests with intra-carbon nanotube spacing ranging between 5-100 nm for isolation of particles such as very small viruses and proteins.Type: GrantFiled: August 8, 2013Date of Patent: November 29, 2016Assignees: Massachusetts Institute of Technology, The General Hospital CorporationInventors: Michael Rubner, Brian L. Wardle, Robert E. Cohen, Mehmet Toner, Fabio Fachin
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Patent number: 9469083Abstract: Inverted Nanocone Structures and Its Fabrication Process. The method of fabricating nanotextured structures includes making a master mold having an array of tapered structures to be replicated. The master mold is pressed into a curable polymer supported on a substrate and the polymer is cured. Thereafter, the mold is detached from the cured polymer to form the nanotextured structure.Type: GrantFiled: July 1, 2013Date of Patent: October 18, 2016Assignee: Massachusetts Institute of TechnologyInventors: Hyungryul Choi, Jeong-gil Kim, Kyoo Chul Park, Robert E. Cohen, Gareth H. McKinley, George Barbastathis
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Patent number: 9352258Abstract: A structure for collecting liquid droplets from an aerosol can have a structure and properties that are selected for efficient liquid collection. In particular, the strand radius and spacing of a mesh, and a material for coating the mesh, can be selected to provide efficient collection of water droplets from fog.Type: GrantFiled: January 10, 2014Date of Patent: May 31, 2016Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Kyoo-Chul Park, Shreerang S. Chhatre, Gareth H. McKinley, Robert E. Cohen
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Publication number: 20150315562Abstract: Uniform, functional polymer patches can be attached to a fraction of the surface area of living individual cells. These surface-modified cells remain viable after attachment of the functional patch. The patch does not completely occlude the cellular surface from the surrounding environment. Functional payloads carried by the patch may include, for example, drugs or other small molecules, peptides, proteins, thermally responsive polymers, and nanoparticles, or any other material that can be incorporated in a polymer patch of subcellular dimensions. The patch can include one or more polyelectrolyte multilayers (PEMs).Type: ApplicationFiled: November 2, 2012Publication date: November 5, 2015Applicant: Massachusetts Institute of TechnologyInventors: Albert J. Swiston, Michael F. Rubner, Robert E. Cohen, Darrell J. Irvine
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Patent number: 9011970Abstract: A process for making an article having anti-fog properties.Type: GrantFiled: July 30, 2010Date of Patent: April 21, 2015Assignee: Essilor InternationalInventors: Haipeng Zheng, Michael Rubner, Nuerxiati Nueraji, Robert E. Cohen
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Patent number: 8986848Abstract: A hydrophilic coating can be applied to virtually any surface to produce a long-lasting, durable antifog effect. The coating includes a molecular-level blend of hydrophilic polymers. The coating can be assembled using a layer-by-layer assembly process.Type: GrantFiled: June 2, 2010Date of Patent: March 24, 2015Assignee: Massachusetts Institute of TechnologyInventors: Nuerxiati Nueraji, Albert J. Swiston, Michael F. Rubner, Robert E. Cohen
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Publication number: 20140336039Abstract: Titania-based porous nanoparticle coatings are mechanically robust, with low haze, which exhibit short time scales for decomposition of fingerprint oils under ultraviolet light. The mechanism by which a typical dactylogram is consumed combines wicking of the sebum into the nanoporous titania structure followed by photocatalytic degradation. These TiO2 nanostructured surfaces are also anti-fogging, anti-bacterial, and compatible with flexible glass substrates and remain photocatalytically active in natural sunlight.Type: ApplicationFiled: May 9, 2014Publication date: November 13, 2014Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Robert E. COHEN, Michael F. RUBNER, Gareth H. MCKINLEY, George BARBASTATHIS, Hyungryul Johnny CHOI, Kyoo Chul PARK, Hyomin LEE
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Publication number: 20140322725Abstract: The present invention provides compositions comprising chimeric polypeptides that bind to free ubiquitin proteins or free ubiquitin-like proteins with high affinity, as well as chimeric polypeptides that bind to both free and conjugated ubiquitin proteins or free and conjugated ubiquitin-like proteins, and methods of using the chimeric polypeptides to determine the amount of free or total ubiquitin or free or total ubiquitin-like proteins in various types of samples.Type: ApplicationFiled: April 30, 2014Publication date: October 30, 2014Applicant: Colorado State University Research FoundationInventors: Robert E. Cohen, Yun-Seok Choi
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Publication number: 20140190352Abstract: A structure for collecting liquid droplets from an aerosol can have a structure and properties that are selected for efficient liquid collection. In particular, the strand radius and spacing of a mesh, and a material for coating the mesh, can be selected to provide efficient collection of water droplets from fog.Type: ApplicationFiled: January 10, 2014Publication date: July 10, 2014Inventors: Kyoo-Chul Park, Shreerang S. Chhatre, Gareth H. McKinley, Robert E. Cohen
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Publication number: 20140127774Abstract: Uniform, functional polymer patches can be attached to a fraction of the surface area of living individual cells. These surface-modified cells remain viable after attachment of the functional patch. The patch does not completely occlude the cellular surface from the surrounding environment. Functional payloads carried by the patch may include, for example, drugs or other small molecules, peptides, proteins, thermally responsive polymers, and nanoparticles, or any other material that can be incorporated in a polymer patch of subcellular dimensions. The patch can include one or more polyelectrolyte multilayers (PEMs).Type: ApplicationFiled: November 2, 2012Publication date: May 8, 2014Applicant: Massachusetts Institute of TechnologyInventors: Albert J. Swiston, Michael F. Rubner, Robert E. Cohen, Darrell J. Irvine
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Patent number: 8709582Abstract: An optical article comprising a substrate and on at least one face of the substrate a multilayered antireflecting coating functioning in an interferential manner having antifog properties, said antireflecting coating including a last layer with a refractive index n?1.55 and a physical thickness of 120 nm or less directly deposited on a high refractive index layer (HI layer) having a refractive index n>1.55, and a thickness of less than 500 nm.Type: GrantFiled: July 30, 2010Date of Patent: April 29, 2014Assignee: Essilor InternationalInventors: Haipeng Zheng, Michael Rubner, Nuerxiati Nueraji, Robert E. Cohen
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Patent number: 8701927Abstract: A superhydrophilic thin film is formed on a metal surface of a boiler vessel to alter the wettability and roughness of the surface, which, in turn, changes the boiling behavior at the surface. The superhydrophilic film is formed by depositing a layer of a first ionic species on the surface from a solution. A second ionic species having a charge opposite to the that of the first ionic species is then deposited from solution onto the surface to produce a bilayer of the first ionic species and the oppositely charged second ionic species. The depositions are then repeated to form a plurality of bilayers, on top of the preceding bilayer. The bilayers are then heated, leaving the second ionic species on the metal surface to form a superhydrophilic film.Type: GrantFiled: February 10, 2010Date of Patent: April 22, 2014Assignee: Massachusetts Institute of TechnologyInventors: Michael F. Rubner, Jacopo Buongiorno, Lin-wen Hu, Eric Christopher Forrest, Erik Howard Williamson, Robert E. Cohen
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Publication number: 20140079601Abstract: A microfluidic device for manipulating particles can include a substrate and one or more obstacles, each obstacle comprising a plurality of aligned nanostructures including a plurality of nanoparticles or a plurality of polymer layers, or a combination thereof. The obstacle on a substrate can be forests with intra-carbon nanotube spacing ranging between 5-100 nm for isolation of particles such as very small viruses and proteins.Type: ApplicationFiled: August 8, 2013Publication date: March 20, 2014Inventors: Michael Rubner, Brian L. Wardle, Robert E. Cohen, Mehmet Toner, Fabio Fachin
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Patent number: 8637141Abstract: A superhydrophilic coating can be antireflective and antifogging. The coating can remain antireflective and antifogging for extended periods. The coating can have a graded refractive index. The coating for wafer-level optics can be for targeted capillary condensation in nanoparticle containing reflow-compatible coatings.Type: GrantFiled: May 28, 2009Date of Patent: January 28, 2014Assignee: Massachusetts Institute of TechnologyInventors: Zekeriyya Gemici, Michael F. Rubner, Robert E. Cohen
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Publication number: 20140010994Abstract: Inverted Nanocone Structures and Its Fabrication Process. The method of fabricating nanotextured structures includes making a master mold having an array of tapered structures to be replicated. The master mold is pressed into a curable polymer supported on a substrate and the polymer is cured. Thereafter, the mold is detached from the cured polymer to form the nanotextured structure.Type: ApplicationFiled: July 1, 2013Publication date: January 9, 2014Applicant: Massachusetts Institute of TechnologyInventors: Hyungryul Choi, Jeong-gil Kim, Kyoo Chul Park, Robert E. Cohen, Gareth H. McKinley, George Barbastathis
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Patent number: 8446666Abstract: The present invention discloses a non-quarter wave multilayer structure having a plurality of alternating low index of refraction material stacks and high index of refraction material stacks. The plurality of alternating stacks can reflect electromagnetic radiation in the ultraviolet region and a narrow band of electromagnetic radiation in the visible region. The non-quarter wave multilayer structure, i.e. nLdL?nHdH??0/4, can be expressed as [A 0.5 qH pL(qH pL)N 0.5 qH G], where q and p are multipliers to the quarter-wave thicknesses of high and low refractive index material, respectively, H is the quarter-wave thickness of the high refracting index material; L is the quarter-wave thickness of the low refracting index material; N represents the total number of layers between bounding half layers of high index of refraction material (0.5 qH); G represents a substrate and A represents air.Type: GrantFiled: May 18, 2009Date of Patent: May 21, 2013Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Massachusetts Institute of TechnologyInventors: Pinar Kurt, Debasish Banerjee, Robert E. Cohen, Michael Rubner, Masahiko Ishii, Minjuan Zhang
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Patent number: 8323637Abstract: Uniform, functional polymer patches can be attached to a fraction of the surface area of living individual cells. These surface-modified cells remain viable after attachment of the functional patch. The patch does not completely occlude the cellular surface from the surrounding environment. Functional payloads carried by the patch may include, for example, drugs or other small molecules, peptides, proteins, thermally responsive polymers, and nanoparticles, or any other material that can be incorporated in a polymer patch of subcellular dimensions. The patch can include one or more polyelectrolyte multilayers (PEMs).Type: GrantFiled: April 9, 2009Date of Patent: December 4, 2012Assignee: Massachusetts Institute of TechnologyInventors: Albert J. Swiston, Michael F. Rubner, Robert E. Cohen, Darrell J. Irvine
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Patent number: 8313798Abstract: A process for fabricating a structural color having ultraviolet reflectance is provided. The process includes providing an atomizing nozzle, a first nanoparticle solution and a second nanoparticle solution. The atomizing nozzle is used to spray a plurality of first nanoparticle solution layers, the plurality of first nanoparticle layers forming a low index of refraction stack. In some instances, a polymer solution can be sprayed before and/or after the spraying of each first nanoparticle solution layer. The atomizing nozzle is also used to spray a plurality of second nanoparticle solution layers, the plurality of second nanoparticle layers form a high index of refraction stack. Similar to the first nanoparticle solution layers, a polymer solution can be sprayed before and/or after the spraying of each second nanoparticle solution layer.Type: GrantFiled: September 29, 2010Date of Patent: November 20, 2012Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Massachusetts Institute of TechnologyInventors: Grinia Michelle Nogueira, Debasish Banerjee, Michael F. Rubner, Robert E. Cohen
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Patent number: 8241698Abstract: One aspect of the present invention relates to an implantable medical device comprising a surface coated with a polyelectrolyte multilayer, wherein said surface is glass, metal, plastic, polymer, or fiberglass. Another aspect of the present invention involves a method of preparing a PEM-coated implantable medical device, comprising the step of applying a film to a surface of an implantable medical device, wherein said film comprises a polyelectrolyte multilayer and said surface is glass, metal, plastic, polymer, or fiberglass.Type: GrantFiled: August 6, 2007Date of Patent: August 14, 2012Assignee: Massachusetts Institute of TechnologyInventors: Robert E. Cohen, Prem V. Pavoor, Anuj Bellare, Brian P. Gearing
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Publication number: 20120160362Abstract: This invention relates generally to articles, devices, and methods for gas hydrate mitigation in deep-sea drilling applications. In certain embodiments, hydrate-phobic surfaces are provided that ensure passive enhancement of flow assurance and prevention of catastrophic failures in deep-sea oil and gas operations.Type: ApplicationFiled: August 25, 2011Publication date: June 28, 2012Applicant: Massachusetts Institute of TechnologyInventors: J. David Smith, Kripa K. Varanasi, Gareth H. McKinley, Robert E. Cohen, Adam J. Meuler, Harrison L. Bralower