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).

  • Patent number: 8153233
    Abstract: A surface with superhydrophobic and hydrophilic or superhydrophilic regions can be made. The hydrophilic or superhydrophilic regions can selective collect water on the surface.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: April 10, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Xiaoxia Sheng, Lei Zhai, Michael F. Rubner, Robert E. Cohen
  • Publication number: 20120058355
    Abstract: A hydrophilic coating can be applied to virtually any surface to produce a long-lasting, durable antifog effect. The coating can be biocompatible. The coating includes a molecular-level blend of hydrophilic polymers. The coating can be assembled using a layer-by-layer assembly process.
    Type: Application
    Filed: August 23, 2011
    Publication date: March 8, 2012
    Inventors: Hyomin Lee, Michael F. Rubner, Robert E. Cohen
  • Publication number: 20120027933
    Abstract: A process for making an article having anti-fog properties.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: Essilor International (Compagnie Generale d'Optique)
    Inventors: Haipeng Zheng, Michael Rubner, Nuerxiati Nueraji, Robert E. Cohen
  • Publication number: 20120028005
    Abstract: 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: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: Essilor International (Compagnie Generale d'Optique)
    Inventors: Haipeng Zheng, Michael Rubner, Nuerxiati Nueraji, Robert E. Cohen
  • Publication number: 20110250613
    Abstract: Linkage-specific polyubiquitin recognition is thought to make possible the diverse set of functional outcomes associated with ubiquitination. Thus far, mechanistic insight into this selectivity has been largely limited to single domains that preferentially bind to lysine 48-linked polyubiquitin (K48-polyUb) in isolation. A mechanism is proposed herein, linkage-specific avidity, in which multiple ubiquitin-binding domains are arranged in space so that simultaneous, high-affinity interactions are optimum with one polyUb linkage but unfavorable or impossible with other polyUb topologies and monoUb. The model used herein is human Rap80, which contains tandem ubiquitin interacting motifs (UIMs) that bind to K63-polyUb at DNA doublestrand breaks. The sequence between the Rap80 UIMs positions the domains for efficient avid binding across a single K63 linkage, thus defining selectivity. K48-specific avidity is also demonstrated in a different protein, ataxin-3.
    Type: Application
    Filed: June 15, 2010
    Publication date: October 13, 2011
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Joshua J. Sims, Robert E. Cohen
  • Publication number: 20110073003
    Abstract: A superhydrophilic coating on a substrate can be antireflective and antifogging. The coating can remain antireflective and antifogging for extended periods. The coating can include oppositely charge inorganic nanoparticles, and can be substantially free of an organic polymer. The coating can be made mechanically robust by a hydrothermal calcination.
    Type: Application
    Filed: November 30, 2010
    Publication date: March 31, 2011
    Inventors: Zekeriyya Gemici, Michael F. Rubner, Robert E. Cohen
  • Publication number: 20110014366
    Abstract: 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: Application
    Filed: September 29, 2010
    Publication date: January 20, 2011
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Massachusetts Institute of Technology
    Inventors: Grinia Michelle Nogueira, Debasish Banerjee, Michael F. Rubner, Robert E. Cohen
  • Publication number: 20100316842
    Abstract: An article can have a surface with selected wetting properties for various liquids.
    Type: Application
    Filed: April 14, 2008
    Publication date: December 16, 2010
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Anish Tuteja, Wonjae Choi, Gareth H. McKinley, Robert E. Cohen, Joseph Mark Mabry
  • Publication number: 20100304163
    Abstract: 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: Application
    Filed: June 2, 2010
    Publication date: December 2, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Nuerxiati Nueraji, Albert J. Swiston, Michael F. Rubner, Robert E. Cohen
  • Patent number: 7842352
    Abstract: A surface can be treated to deposit a superhydrophilic coating on a surface that can be antireflective and antifogging. The coating can remain antireflective and antifogging for extended periods. The coating can include oppositely charge inorganic nanoparticles, and can be substantially free of an organic polymer. The coating can be made mechanically robust by a hydrothermal calcination.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: November 30, 2010
    Assignee: Massachusetts Institute of Technology
    Inventors: Zekeriyya Gemici, Michael F. Rubner, Robert E. Cohen
  • Publication number: 20100290109
    Abstract: 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 0.5qH pL(qH pL)N 0.5qH 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 (0.5qH); G represents a substrate and A represents air.
    Type: Application
    Filed: May 18, 2009
    Publication date: November 18, 2010
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Massachusetts Institute of Technology
    Inventors: Pinar Kurt, Debasish Banerjee, Robert E. Cohen, Michael Rubner, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20100224638
    Abstract: 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: Application
    Filed: February 10, 2010
    Publication date: September 9, 2010
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Michael F. Rubner, Jacopo Buongiorno, Lin-wen Hu, Eric Christopher Forrest, Erik Howard Williamson, Robert E. Cohen
  • Publication number: 20090324910
    Abstract: 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: Application
    Filed: May 28, 2009
    Publication date: December 31, 2009
    Applicant: Massachussetts Institute of Technology
    Inventors: Zekeriyya Gemici, Michael F. Rubner, Robert E. Cohen
  • Publication number: 20090258057
    Abstract: 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: Application
    Filed: April 9, 2009
    Publication date: October 15, 2009
    Applicant: Massachusetts Institute of Technology
    Inventors: Albert J. Swiston, Michael F. Rubner, Robert E. Cohen, Darrell J. Irvine
  • Publication number: 20080268229
    Abstract: A superhydrophilic coating on a substrate can be antireflective and antifogging. The coating can remain antireflective and antifogging for extended periods. The coating can include oppositely charge inorganic nanoparticles, and can be substantially free of an organic polymer.
    Type: Application
    Filed: August 9, 2006
    Publication date: October 30, 2008
    Inventors: Daeyeon Lee, Robert E. Cohen, Michael F. Rubner
  • Publication number: 20080228280
    Abstract: 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: Application
    Filed: August 6, 2007
    Publication date: September 18, 2008
    Applicant: Massachusetts Institute of Technology
    Inventors: Robert E. Cohen, Prem V. Pavoor, Anuj Bellare, Brian P. Gearing
  • Publication number: 20080038458
    Abstract: A superhydrophilic coating on a substrate can be antireflective and antifogging. The coating can remain antireflective and antifogging for extended periods. The coating can include oppositely charge inorganic nanoparticles, and can be substantially free of an organic polymer. The coating can be made mechanically robust by a hydrothermal calcination.
    Type: Application
    Filed: August 9, 2006
    Publication date: February 14, 2008
    Inventors: Zekeriyya Gemici, Michael R. Rubner, Robert E. Cohen
  • Patent number: 7251893
    Abstract: 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: Grant
    Filed: June 3, 2003
    Date of Patent: August 7, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Robert E. Cohen, Prem V. Pavoor, Anuj Bellare, Brian P. Gearing
  • Patent number: 6946172
    Abstract: Rubbery products having a transition temperature that shrink from a second shape and size toward their original shape and size upon application of energy equivalent in result to raising the temperature of the rubbery product above the transition temperature. Also, hypo-allergenic rubbery products made from polybutadiene and its copolymers, trans-1,4-polybutadiene and its copolymers, synthetic isoprene and its copolymers, or synthetic cis-1,4-polyisoprene and its copolymers. Such rubbery products (not all of which need to be made to shrink) can be used in condoms, gloves, catheters, baby-bottle nipples, and dental dams, to name just a few.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: September 20, 2005
    Inventors: Charles S. Munn, Robert E. Cohen
  • Publication number: 20040249469
    Abstract: 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: Application
    Filed: June 3, 2003
    Publication date: December 9, 2004
    Inventors: Robert E. Cohen, Prem V. Pavoor, Anuj Bellare, Brian P. Gearing