Patents by Inventor ANDRE GEIM

ANDRE GEIM 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: 10583407
    Abstract: This invention relates to barrier materials comprising reduced graphene oxide, methods of making said materials and their uses. The reduced graphene oxide is preferably formed from the reduction of graphene oxide by HI, HBr or ascorbic acid.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: March 10, 2020
    Assignee: The University of Manchester
    Inventors: Rahul Raveendran-Nair, Yang Su, Andre Geim
  • Publication number: 20200061546
    Abstract: The invention relates to graphene oxide laminate membranes that are physically constrained. The physical constraint limits the size of the capillaries in the laminate, allowing them to be tailored to a particular application. This invention also relates to methods of purifying water using said membranes and methods of making said membranes.
    Type: Application
    Filed: November 30, 2017
    Publication date: February 27, 2020
    Inventors: Rahul Raveendran-Nair, Jijp Abranbam, Andre Geim
  • Publication number: 20180071692
    Abstract: This invention relates to uses of graphene oxide, and in particular graphene oxide on a porous support, and a membrane comprising these materials. This invention also relates to methods of dehydration, which include vapour phase separation and pervaporation. Pervaporation is a method of separating mixtures of liquids using a membrane. Pervaporation consists of two basic steps: permeation of the permeate through the membrane and evaporation of the permeate from the other side of the membrane. Pervaporation is a mild which can be used to separate components which would not survive the comparatively harsh conditions needed for distillation (high temp, and/or low pressure).
    Type: Application
    Filed: November 15, 2017
    Publication date: March 15, 2018
    Inventors: Rahul Raveendran NAIR, Peter BUDD, Andre Geim
  • Patent number: 9844758
    Abstract: This invention relates to uses of graphene oxide, and in particular graphene oxide on a porous support, and a membrane comprising these materials. This invention also relates to methods of dehydration, which include vapour phase separation and pervaporation. Pervaporation is a method of separating mixtures of liquids using a membrane. Pervaporation consists of two basic steps: permeation of the permeate through the membrane and evaporation of the permeate from the other side of the membrane. Pervaporation is a mild which can be used to separate components which would not survive the comparatively harsh conditions needed for distillation (high temp, and/or low pressure).
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: December 19, 2017
    Assignee: The University of Manchester
    Inventors: Rahul Nair, Peter Budd, Andre Geim
  • Publication number: 20170106342
    Abstract: This invention relates to barrier materials comprising reduced graphene oxide, methods of making said materials and their uses. The reduced graphene oxide is preferably formed from the reduction of graphene oxide by HI, HBr or ascorbic acid.
    Type: Application
    Filed: March 26, 2015
    Publication date: April 20, 2017
    Inventors: Rahul RAVEENDRAN-NAIR, Yang SU, Andre GEIM
  • Patent number: 9548364
    Abstract: This application relates to graphene based heterostructures and methods of making graphene based heterostructures. The graphene heterostructures comprise: i) a first encapsulation layer; ii) a second encapsulation layer; and iii) a graphene layer. The heterostructures find application in electronic devices.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 17, 2017
    Assignee: The University of Manchester
    Inventors: Andre Geim, Kostya Novoselov, Roman Gorbachev, Leonid Ponomarenko
  • Publication number: 20160297693
    Abstract: This invention relates to methods of purifying water using forward osmosis, with a graphene oxide laminate acting as a semi-permeable membrane. The laminate is formed from stacks of individual graphene oxide flakes which may be predominantly monolayer thick. The methods of the invention find particular application in the desalination of salt water.
    Type: Application
    Filed: November 20, 2014
    Publication date: October 13, 2016
    Applicant: THE UNIVERSITY OF MANCHESTER
    Inventors: Rahul RAVEENDRAN-NAIR, Rakesh K. JOSHI, Andre GEIM
  • Publication number: 20160280563
    Abstract: This invention relates to methods of purifying water using graphene oxide laminates which are formed from stacks of individual graphene oxide flakes which may be predominantly monolayer thick. The graphene oxide laminates may act as membrans which exclude large solutes i.e. with a hydration radius above about 4.5 ? or they may act as sorbents to absorb solutes having a hydration radius less than about 4.7 ?.
    Type: Application
    Filed: November 20, 2014
    Publication date: September 29, 2016
    Inventors: Rahul RAVEENDRAN-NAIR, Rakesh K. JOSHI, Andre GEIM
  • Patent number: 9318591
    Abstract: This application relates to graphene based heterostructures and transistor devices comprising graphene. The hetero-structures comprise i) a first graphene layer; ii) a spacer layer and iii) a third graphene. The transistors comprise (i) an electrode, the electrode comprising a graphene layer, and (ii) an insulating barrier layer.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: April 19, 2016
    Assignee: The University of Manchester
    Inventors: Andre Geim, Konstantin Novoselov, Roman Gorbachev, Leonid Ponomarenko, Liam Britnell
  • Publication number: 20150231577
    Abstract: This invention relates to uses of graphene oxide, and in particular graphene oxide on a porous support, and a membrane comprising these materials. This invention also relates to methods of dehydration, which include vapour phase separation and pervaporation. Pervaporation is a method of separating mixtures of liquids using a membrane. Pervaporation consists of two basic steps: permeation of the permeate through the membrane and evaporation of the permeate from the other side of the membrane. Pervaporation is a mild which can be used to separate components which would not survive the comparatively harsh conditions needed for distillation (high temp, and/or low pressure).
    Type: Application
    Filed: August 14, 2013
    Publication date: August 20, 2015
    Applicant: THE UNIVERSITY OF MANCHESTER
    Inventors: Rahul Nair, Peter Budd, Andre Geim
  • Patent number: 9017474
    Abstract: The present invention relates to the novel material fluorographene (FG), methods of making fluorographene, and its applications in electronics and related fields. The fluorographene also finds use in improving the properties of composite materials by incorporating the fluorographene of the invention with one or more materials such as fluoropolymers (FP) and the like. Conventionally, FP inter-chain interactions are very weak but spread over the area of FG, FG is able to act as a very effective and compatible reinforcement.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: April 28, 2015
    Assignee: The University of Manchester
    Inventors: Andre Geim, Rahul Raveendran-Nair, Kostya Novoselov
  • Publication number: 20140008611
    Abstract: This application relates to graphene based heterostructures and methods of making graphene based heterostructures. The graphene heterostructures comprise: i) a first encapsulation layer; ii) a second encapsulation layer; and iii) a graphene layer. The heterostructures find application in electronic devices.
    Type: Application
    Filed: March 22, 2012
    Publication date: January 9, 2014
    Applicant: THE UNIVERSITY OF MANCHESTER
    Inventors: Andre Geim, Kostya Novoselov, Roman Gorbachev, Leonid Ponomarenko
  • Publication number: 20140008616
    Abstract: This application relates to graphene based heterostructures and transistor devices comprising graphene. The hetero-structures comprise i) a first graphene layer; ii) a spacer layer and iii) a third graphene. The transistors comprise (i) an electrode, the electrode comprising a graphene layer, and (ii) an insulating barrier layer.
    Type: Application
    Filed: March 22, 2012
    Publication date: January 9, 2014
    Applicant: THE UNIVERSITY OF MANCHESTER
    Inventors: Andre Geim, Kostya Novoselov, Roman Gorbachev, Leonid Ponomarenko, L. Britnell
  • Publication number: 20110303121
    Abstract: The present invention relates to the novel material fluorographene (FG), methods of making fluorographene, and its applications in electronics and related fields. The fluorographene also finds use in improving the properties of composite materials by incorporating the fluorographene of the invention with one or more materials such as fluoropolymers (FP) and the like. Conventionally, FP inter-chain interactions are very weak but spread over the area of FG, FG is able to act as a very effective and compatible reinforcement.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 15, 2011
    Applicant: The University of Manchester
    Inventors: ANDRE GEIM, Rahul Raveendran-Nair, Kostya Novoselov