Patents by Inventor Che-Hsiung Hsu

Che-Hsiung Hsu 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).

  • Publication number: 20200206212
    Abstract: Provided herein are formulations and methods of use of 2-(4-chlorophenyl)-N-((2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolin-5-yl)methyl)-2,2-difluoroacetamide or a stereoisomer or mixture of stereoisomers, pharmaceutically acceptable salt, tautomer, prodrug, isotopologue, solvate, hydrate, co-crystal, clathrate, or polymorph thereof.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 2, 2020
    Inventors: Rowena Fernandez Choudrie, Willard Foss, Che-Hsiung Hsu, Amol Mungikar, Yu Pu
  • Patent number: 8945426
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions contain a semi-aqueous dispersion of at least one electrically conductive polymer doped with at least one highly-fluorinated acid polymer, non-conductive oxide nanoparticles, at least one high-boiling organic liquid, and at least one lower-boiling organic liquid.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: February 3, 2015
    Assignees: E I du Pont de Nemours and Company, Dupont Displays Inc
    Inventors: Tami Janene Faircloth, Che-Hsiung Hsu, Daniel David Lecloux, Hjalti Skulason, Gordana Srdanov, Charles D. Lang, Michel Dubeau, Nancy L. Gin, Veevin Tsao Kuo Hsu
  • Patent number: 8945427
    Abstract: The present disclosure relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions are an aqueous dispersion including: (i) at least one electrically conductive polymer doped with a non-fluorinated polymeric acid; (ii) at least one highly-fluorinated acid polymer; and (iii) electrically insulative oxide nanoparticles.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: February 3, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Veevin Tsao Kuo Hsu
  • Patent number: 8845933
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions are an aqueous dispersion including: (i) at least one electrically conductive polymer doped with a non-fluorinated polymeric acid; (ii) at least one highly-fluorinated acid polymer; (iii) at least one water-compatible high-boiling organic solvent; and (iv) electrically insulative inorganic oxide nanoparticles.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: September 30, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventor: Che-Hsiung Hsu
  • Patent number: 8784692
    Abstract: Compositions are provided comprising a continuous liquid aqueous medium having dispersed therein a polydioxythiophene and at least one colloid-forming fluorinated polymeric acid. Films from invention compositions are useful as buffer layers in organic electronic devices, including electroluminescent devices, such as, for example, organic light emitting diodes (OLED) displays.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: July 22, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Yong Cao, Sunghan Kim, Daniel David Lecloux, Chi Zhang
  • Patent number: 8785913
    Abstract: The present invention relates to buffer bilayers, and their use in electronic devices. The bilayer has a first layer including (i) at least one electrically conductive polymer doped with at least one non-fluorinated polymeric acid and (ii) at least one highly-fluorinated acid polymer. The bilayer has a second layer which is a reacted layer from a metal which can be one or more transition metals, Group 13 metals, Group 14 metals, or lanthanide metals.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: July 22, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Chi Zhang
  • Patent number: 8766239
    Abstract: The present invention relates to buffer bilayers, and their use in electronic devices. The bilayer has a first layer including at least one electrically conductive polymer doped with at least one highly-fluorinated acid polymer. The second layer is a reacted layer from a metal which can be one or more transition metals, Group 13 metals, Group 14 metals, or lanthanide metals.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: July 1, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Chi Zhang, Che-Hsiung Hsu
  • Patent number: 8765022
    Abstract: Compositions are provided comprising aqueous dispersions of at least one polypyrrole and at least one colloid-forming polymeric acid. The colloid-forming polymeric acid may be fluorinated. The new compositions are useful in electronic devices including organic electronic devices such as organic light emitting diode displays, memory storage, electromagnetic shielding, electrochromic displays, and thin film transistors, field effect resistance devices.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: July 1, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason, Eric Maurice Smith
  • Patent number: 8658061
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include (i) an intrinsically conductive polymer having at least one monomer unit which is a pyridine-fused heteroaromatic and (ii) a fluorinated acid polymer.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: February 25, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason
  • Patent number: 8641926
    Abstract: Devices are provided comprising conductive or semiconductive layers comprising compositions comprising aqueous dispersions of polythiophenes having homopolymers or co-polymers of Formula I(a) or Formula I(b) and at least one colloid-forming polymeric acid. Methods of making such compositions and using them in organic electronic devices are further provided.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: February 4, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che Hsiung Hsu, Yong Cao, Sunghan Kim, Daniel David Lecloux, Huawen Li, Charles Douglas Macpherson, Chi Zhang, Hjalti Skulason
  • Patent number: 8585931
    Abstract: Compositions are provided comprising a continuous liquid aqueous medium having dispersed therein a polydioxythiophene and at least one colloid-forming fluorinated polymeric acid. Films from invention compositions are useful as buffer layers in organic electronic devices, including electroluminescent devices, such as, for example, organic light emitting diodes (OLED) displays.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: November 19, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Yong Cao, Sunghan Kim, Daniel David Lecloux, Chi Zhang
  • Patent number: 8568616
    Abstract: There are provided electrically conducting polymer compositions comprising an electrectically conductive polymer or copolymer and an organic solvent wettable fluorinated acid polymer. Electrically conductive polymer materials are derived from thiophene, pyrrole, aniline and polycyclic heteroaromatic precursor monomers. Non-conductive polymers derived from alkenyl, alkynyl, arylene, and heteroarylene precursor monomers. The organic-solvent wettable fluorinated acid polymer is fluorinated or highly fluorinated and may be colloid-forming. Acidic groups include carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The compositions can be used in organic electronic devices.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: October 29, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Christopher P. Junk, Frank P. Uckert, Mark F. Teasley, Andrew Edward Feiring, Charles J. Dubois, Viacheslav A. Petrov, Natalie Daoud, Amy Qi Han
  • Patent number: 8491819
    Abstract: Provided are compositions having high conductivity and high work-function. The compositions comprise an aqueous dispersion or solution of an electrically conducting polymer and a perfluorinated polymeric acid. The conductive polymers may be made from conjugated monomers or comonomers and a non-fluorinated polymeric acid, and the perfluorinated polymeric acides may be derived from perfluoroolefins having perfluoro-ether-sulfonic acid side chains. Devices embodying such compositions are also provided.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: July 23, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: Che-Hsiung Hsu
  • Patent number: 8461758
    Abstract: The present invention relates to buffer bilayers, and their use in electronic devices. The bilayer has a first layer including (a) at least one electrically conductive polymer doped with at least one non-highly-fluorinated acid polymer and (b) at least one highly-fluorinated acid polymer, and a second layer including inorganic nanoparticles which are oxides or sulfides.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: June 11, 2013
    Assignee: E I Du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Weiying Gao, Shiva Prakash
  • Patent number: 8455865
    Abstract: Compositions are provided comprising aqueous dispersions of electrically conducting organic polymers and a plurality of nanoparticles. Films cast from invention compositions are useful as buffer layers in electroluminescent devices, such as organic light emitting diodes (OLEDs) and electrodes for thin film field effect transistors. Buffer layers containing nanoparticles have a much lower conductivity than buffer layers without nanoparticles. In addition, when incorporated into an electroluminescent (EL) device, buffer layers according to the invention contribute to higher stress life of the EL device.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: June 4, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: Che-Hsiung Hsu
  • Patent number: 8409476
    Abstract: There is provided a transparent conductor including conductive nanoparticles and at least one of (a) a fluorinated acid polymer and (b) a semiconductive polymer doped with a fluorinated acid polymer. The nanoparticles are carbon nanoparticles, metal nanoparticles, or combinations thereof. The carbon and metal nanoparticles are selected from nanotubes, fullerenes, and nanofibers. The acid polymers are fluorinated or highly fluorinated and have acidic groups including carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The semiconductive polymers comprise homopolymers and copolymers derived from monomers selected from substituted and unsubstituted thiophenes, pyrroles, anilines, and cyclic heteroaromatics, and combinations of those. The compositions may be used in organic electronic devices (OLEDs).
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 2, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason
  • Patent number: 8383009
    Abstract: There is provided an electrically conductive polymer composition. The composition includes an electrically conductive polymer and a partially-fluorinated acid polymer. At least 50% of acid protons on the partially-fluorinated acid polymer are replaced with cations. The cations can be inorganic cations, organic cations, and combinations thereof.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 26, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: Che-Hsiung Hsu
  • Patent number: 8343630
    Abstract: There is provided a transparent composite conductor. The composite conductor has a first layer that includes a transparent conductive material and a second layer that includes a fluorinated acid polymer.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: January 1, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason, Daniel David Lecloux, Eric Maurice Smith, Shawn Yeisley, Robert Clayton Wheland
  • Patent number: 8338512
    Abstract: Compositions are provided comprising aqueous dispersions of electrically conducting organic polymers and a plurality of nanoparticles wherein pH can be adjusted for improved organic electronic device performance. Films deposited from invention compositions are useful as buffer layers in electroluminescent devices, such as organic light emitting diodes (OLEDs) and electrodes for thin film field effect transistors. Buffer layers containing nanoparticles may have a much lower conductivity than buffer layers without nanoparticles. In addition, when incorporated into an electroluminescent (EL) device, buffer layers according to the invention contribute to higher stress life of the EL device.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: December 25, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventor: Che Hsiung Hsu
  • Patent number: RE44853
    Abstract: Buffer compositions comprising semiconductive oxide particles and at least one of (a) a fluorinated acid polymer and (b) a semiconductive polymer doped with a fluorinated acid polymer are provided. Semiconductive oxide particles include metal oxides and bimetallic oxides. Acid polymers are derived from monomers or comonomers of polyolefins, polyacrylates, polymethacrylates, polyimides, polyamides, polyaramides, polyacrylamides, polystrenes. The polymer backbone, side chains, pendant groups or combinations thereof may be fluorinated or highly fluorinated. Semiconductive polymers include polymers or copolymers derived from thiophenes, pyrroles, anilines, and polycyclic heteroaromatics. Methods for preparing buffer compositions are also provided.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: April 22, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason, Mark Martello