Patents by Inventor Christian Ippen

Christian Ippen 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: 20250092311
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures using a Group IV metal halide. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.
    Type: Application
    Filed: November 25, 2024
    Publication date: March 20, 2025
    Inventors: Benjamin NEWMEYER, Christian IPPEN, Jesse MANDERS, Ruiqing MA, Dylan Charles HAMILTON
  • Publication number: 20250059441
    Abstract: The invention pertains to the field of nanotechnology. The invention provides highly luminescent nanostructures, particularly highly luminescent nanostructures comprising a ZnSe1-xTex core and ZnS and/or ZnSe shell layers. The nanostructures comprising a ZnSe1-xTex core and ZnS and/or ZnSe shell layers display a low full width at half-maximum and a high quantum yield. The invention also provides methods of producing the nanostructures.
    Type: Application
    Filed: November 4, 2024
    Publication date: February 20, 2025
    Inventors: Benjamin NEWMEYER, Christian IPPEN, Ruiqing MA
  • Patent number: 12163079
    Abstract: The invention pertains to the field of nanotechnology. The invention provides highly luminescent nanostructures, particularly highly luminescent nanostructures comprising a ZnSe1-xTex core and ZnS and/or ZnSe shell layers. The nanostructures comprising a ZnSe1-xTex core and ZnS and/or ZnSe shell layers display a low full width at half-maximum and a high quantum yield. The invention also provides methods of producing the nanostructures.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: December 10, 2024
    Assignee: SHOEI CHEMICAL INC.
    Inventors: Benjamin Newmeyer, Christian Ippen, Ruiqing Ma
  • Patent number: 12157849
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures using a Group IV metal halide. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: December 3, 2024
    Assignee: SHOEI CHEMICAL INC.
    Inventors: Benjamin Newmeyer, Christian Ippen, Jesse Manders, Ruiqing Ma, Dylan Charles Hamilton
  • Patent number: 12146089
    Abstract: The invention pertains to the field of nanotechnology. The disclosure provides nanostructure compositions comprising (a) at least one organic solvent; (b) at least one population of nanostructures comprising a core and at least one shell, wherein the nanostructures comprise inorganic ligands bound to the surface of the nanostructures; and (c) at least one poly(alkylene oxide) additive. The nanostructure compositions comprising at least one poly(alkylene oxide) additive show improved solubility in organic solvents. And, the nanostructure compositions show increased suitability for use in inkjet printing. The disclosure also provides methods of producing emissive layers using the nanostructure compositions.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: November 19, 2024
    Assignee: SHOEI CHEMICAL INC.
    Inventors: Christian Ippen, Donald Zehnder, Ruiqing Ma
  • Patent number: 12049582
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures using in situ prepared zinc dioleate and/or a metal halide. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: July 30, 2024
    Assignee: SHOEI CHEMICAL INC.
    Inventors: Yeewah Annie Chow, Jason Hartlove, Charles Hotz, Chunming Wang, Wenzhou Guo, Ilan Jen-La Plante, Jason Travis Tillman, John J. Curley, Christian Ippen, Alexander Tu, Ke Gong, Minghu Tu
  • Publication number: 20240101901
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures with fluoride passivation. The disclosure also provides methods of preparing nanostructures with fluoride and amine passivation. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.
    Type: Application
    Filed: March 16, 2023
    Publication date: March 28, 2024
    Inventors: Benjamin NEWMEYER, Christian IPPEN, Ruiqing MA, Diego BARRERA, Jesse Robert MANDERS
  • Publication number: 20240101897
    Abstract: The invention is in the field of nanostructure synthesis. Provided are highly luminescent core/shell nanostructures with zinc fluoride and zinc acetate bound to their surface. Also provided are methods of preparing the nanostructures, films comprising the nanostructures, and devices comprising the nanostructures.
    Type: Application
    Filed: March 15, 2023
    Publication date: March 28, 2024
    Applicant: Nanosys, Inc.
    Inventors: Daekyoung KIM, Wenzhou GUO, Alexander TU, Yeewah Annie CHOW, Diego BARRERA, Christian IPPEN, Benjamin NEWMEYER, Ruiqing MA
  • Publication number: 20240101900
    Abstract: The invention relates to highly luminescent nanostructures with improved blue light absorbance, particularly core/shell nanostructures comprising a ZnSe core and InP and/or ZnS shell layers. The invention also relates to methods of producing such nanostructures.
    Type: Application
    Filed: March 9, 2023
    Publication date: March 28, 2024
    Applicant: Nanosys, Inc.
    Inventors: John CURLEY, Chunming WANG, Jay YAMANAGA, Xiaofeng ZHANG, Christian IPPEN
  • Patent number: 11824146
    Abstract: Quantum dots and methods of making quantum dots are described. A method begins with forming quantum dots having a core-shell structure with a plurality of ligands on the shell structure. The method includes exchanging the plurality of ligands with a plurality of second ligands. The plurality of second ligands have a weaker binding affinity to the shell structure than the plurality of first ligands. The plurality of second ligands are then exchanged with hydrolyzed alkoxysilane to form a monolayer of hydrolyzed alkoxysilane on a surface of the shell structure. The method includes forming a barrier layer around the shell structure by using the hydrolyzed alkoxysilane as a nucleation center.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: November 21, 2023
    Assignee: SHOEI CHEMICAL INC.
    Inventors: Shihai Kan, Jay Yamanaga, Charles Hotz, Jason Hartlove, Veeral Hardev, Jian Chen, Christian Ippen, Wenzhou Guo, Robert Wilson
  • Patent number: 11753587
    Abstract: The invention relates to highly luminescent nanostructures, particularly highly luminescent nanostructures comprising a ZnSe1-xTex core and ZnS and/or ZnSe shell layers. The invention also relates to methods of producing such nanostructures.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: September 12, 2023
    Assignee: NANOSYS, Inc.
    Inventors: Christian Ippen, Jonathan Truskier, Jesse Manders
  • Publication number: 20230235224
    Abstract: The invention pertains to the field of nanotechnology. The invention provides highly luminescent nanostructures, particularly highly luminescent nanostructures comprising a ZnSe1-xTex core and ZnS and/or ZnSe shell layers. The nanostructures comprising a ZnSe1-xTex core and ZnS and/or ZnSe shell layers display a low full width at half-maximum and a high quantum yield. The invention also provides methods of producing the nanostructures.
    Type: Application
    Filed: October 26, 2022
    Publication date: July 27, 2023
    Applicant: NANOSYS, INC.
    Inventors: Benjamin NEWMEYER, Christian IPPEN, Ruiqing MA
  • Publication number: 20230235225
    Abstract: The invention pertains to the field of nanotechnology. The disclosure provides nanostructure compositions comprising (a) at least one organic solvent; (b) at least one population of nanostructures comprising a core and at least one shell, wherein the nanostructures comprise inorganic ligands bound to the surface of the nanostructures; and (c) at least one poly(alkylene oxide) additive. The nanostructure compositions comprising at least one poly(alkylene oxide) additive show improved solubility in organic solvents. And, the nanostructure compositions show increased suitability for use in inkjet printing. The disclosure also provides methods of producing emissive layers using the nanostructure compositions.
    Type: Application
    Filed: December 19, 2022
    Publication date: July 27, 2023
    Applicant: Nanosys, Inc.
    Inventors: Christian IPPEN, Donald ZEHNDER, Ruiqing MA
  • Publication number: 20230229087
    Abstract: Provided are patterned films comprising nanostructures and one or more UV-cured monomers. Also provide are methods of making the patterned films, and electroluminescent devices comprising the patterned films.
    Type: Application
    Filed: January 18, 2023
    Publication date: July 20, 2023
    Applicant: Nanosys, Inc.
    Inventors: Christian IPPEN, Diego BARRERA, Ruiqing MA
  • Patent number: 11639468
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures with fluoride passivation. The disclosure also provides methods of preparing nanostructures with fluoride and amine passivation. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: May 2, 2023
    Assignee: Nanosys, Inc.
    Inventors: Benjamin Newmeyer, Christian Ippen, Ruiqing Ma, Diego Barrera, Jesse Robert Manders
  • Patent number: 11634629
    Abstract: The invention is in the field of nanostructure synthesis. Provided are highly luminescent core/shell nanostructures with zinc fluoride and zinc acetate bound to their surface. Also provided are methods of preparing the nanostructures, films comprising the nanostructures, and devices comprising the nanostructures.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 25, 2023
    Assignee: Nanosys, Inc.
    Inventors: Daekyoung Kim, Wenzhou Guo, Alexander Tu, Yeewah Annie Chow, Diego Barrera, Christian Ippen, Benjamin Newmeyer, Ruiqing Ma
  • Patent number: 11637256
    Abstract: The present invention provides nanostructure compositions and methods of producing nanostructure compositions. The nanostructure compositions comprise a population of nanostructures comprising charge-transporting ligands. The present invention also provides nanostructure films comprising the nanostructure compositions and methods of making nanostructure films using the nanostructure compositions.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: April 25, 2023
    Assignee: Nanosys, Inc.
    Inventors: Christian Ippen, Daekyoung Kim, Emma Rose Dohner, Jesse Manders, David Olmeijer, Ruiqing Ma
  • Patent number: 11634631
    Abstract: The invention relates to highly luminescent nanostructures with improved blue light absorbance, particularly core/shell nanostructures comprising a ZnSe core and InP and/or ZnS shell layers. The invention also relates to methods of producing such nanostructures.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 25, 2023
    Assignee: Nanosys, Inc.
    Inventors: John Curley, Chunming Wang, Jay Yamanaga, Xiaofeng Zhang, Christian Ippen
  • Publication number: 20230036119
    Abstract: The present invention provides nanostructure compositions and methods of producing nanostructure compositions. The nanostructure compositions comprise a population of nanostructures comprising donor-acceptor ligands. The present invention also provides nanostructure films comprising the nanostructure compositions and methods of making nanostructure films using the nanostructure compositions.
    Type: Application
    Filed: July 7, 2022
    Publication date: February 2, 2023
    Inventors: Daekyoung KIM, Christian IPPEN, Ruiquing MA, Dylan GARY, Donald ZEHNDER
  • Patent number: 11555149
    Abstract: The invention pertains to the field of nanotechnology. The disclosure provides nanostructure compositions comprising (a) at least one organic solvent; (b) at least one population of nanostructures comprising a core and at least one shell, wherein the nanostructures comprise inorganic ligands bound to the surface of the nanostructures; and (c) at least one poly(alkylene oxide) additive. The nanostructure compositions comprising at least one poly(alkylene oxide) additive show improved solubility in organic solvents. And, the nanostructure compositions show increased suitability for use in inkjet printing. The disclosure also provides methods of producing emissive layers using the nanostructure compositions.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: January 17, 2023
    Assignee: Nanosys, Inc.
    Inventors: Christian Ippen, Donald Zehnder, Ruiqing Ma