Patents by Inventor Shuhua Yuan

Shuhua Yuan 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: 20240052530
    Abstract: A method of producing carbon fibers by forming, via a one pot acidic precipitation, a precipitated lignin from a precipitation solution by contacting a lignin solution and an acid solution, wherein the precipitation solution comprises the lignin solution and the acid solution, wherein the lignin solution comprises lignin dissolved in a basic aqueous solution, and wherein the acidic solution has a pH of less than or equal to about 6, 5, 4, 3, or 2; forming precursor fibers from the precipitated lignin; and subjecting the precursor fibers to thermostabilization, carbonization, or both to produce the carbon fibers.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 15, 2024
    Applicant: The Texas A&M University System
    Inventors: Joshua Shuhua Yuan, Qiang Li
  • Patent number: 11840776
    Abstract: A method of producing carbon fibers includes (a) treating lignin to produce a precursor lignin having an increased uniformity. The increased uniformity is defined by (i) an increased linear structure as evidenced by an increased percentage of linkages selected from uncondensed ?-O-4? interunitery linkages or condensed ?-5? linkages, (ii) a reduced polydispersity index (PDI), or (iii) an increased amount of multiple intermolecular hydrogen bonding relative to the lignin prior to treating. In addition, the method includes (b) forming precursor fibers from the precursor lignin. Further, the method includes (c) subjecting the precursor fibers to thermostabilization or carbonization to produce the carbon fibers.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: December 12, 2023
    Assignee: THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Joshua Shuhua Yuan, Qiang Li
  • Publication number: 20230357802
    Abstract: The present invention provides methods and compositions for increasing lignin degradation to produce a biological product. Also provided are methods for increasing expression of laccase in a bacterial species to produce increased lignin degradation. Also provided are bacterial cells and commodities or commodity produces produced from such methods.
    Type: Application
    Filed: December 5, 2022
    Publication date: November 9, 2023
    Inventors: Shuhua Yuan, Shangxian Xie, Xin Wang
  • Patent number: 11519011
    Abstract: The present invention provides methods and compositions for increasing lignin degradation to produce a biological product. Also provided are methods for increasing expression of laccase in a bacterial species to produce increased lignin degradation. Also provided are bacterial cells and commodities or commodity produces produced from such methods.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: December 6, 2022
    Assignee: The Texas A&M University System
    Inventors: Shuhua Yuan, Shangxian Xie, Xin Wang
  • Publication number: 20200407884
    Abstract: A method of producing carbon fibers includes (a) treating lignin to produce a precursor lignin having an increased uniformity. The increased uniformity is defined by (i) an increased linear structure as evidenced by an increased percentage of linkages selected from uncondensed ?-O-4? interunitery linkages or condensed ?-5? linkages, (ii) a reduced polydispersity index (PDI), or (iii) an increased amount of multiple intermolecular hydrogen bonding relative to the lignin prior to treating. In addition, the method includes (b) forming precursor fibers from the precursor lignin. Further, the method includes (c) subjecting the precursor fibers to thermostabilization or carbonization to produce the carbon fibers.
    Type: Application
    Filed: February 26, 2019
    Publication date: December 31, 2020
    Applicant: The Texas A&M University System
    Inventors: Joshua Shuhua Yuan, Qiang Li
  • Publication number: 20200332311
    Abstract: The present invention relates to increasing bioproduct yield in plants. In particular, the invention relates increasing the yield of bioproduct synthesized by a plant per unit mass of plant biomass. The bioproduct can be a carbon-based bioproduct, specifically it may be a terpene, and more specifically it may be squalene.
    Type: Application
    Filed: January 12, 2018
    Publication date: October 22, 2020
    Inventors: Shuhua Yuan, Cheng Zhao
  • Patent number: 10604763
    Abstract: The invention relates to genetic constructs encoding a compartmenting peptide, wherein expression of the compartmenting peptide leads to formation of a droplet body comprising a targeted biological product, and to vectors including such constructs. The invention also relates to methods of increasing the yield of a biological product in a plant, and to methods for producing a transgenic plant which produces an increased yield of a biological product. The invention also relates to transgenic plants, host cells, plant propagation products and plant parts. The invention also relates to the biological products themselves, produced according to the invention.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: March 31, 2020
    Assignee: The Texas A & M University System
    Inventors: Shuhua Yuan, Xin Wang
  • Patent number: 10160989
    Abstract: One of the most important technical barriers for algal biofuel is the substantial harvesting and extracting cost. The present invention includes a system and method for the pelletization of single cell microalgae through co-cultivation with filamentous fungi to enable the low cost separation of microalgae from liquid medium and to significantly increase the biomass and lipid yield. The approach represents a simple and straightforward method to significantly reduce the cost for algae-based biofuel production and enable the economically viable algae biofuel production.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: December 25, 2018
    Assignee: RENEWUEL LLC
    Inventors: Joshua (Shuhua) Yuan, Shangxian Xie
  • Publication number: 20180216141
    Abstract: The present invention provides methods and compositions for increasing lignin degradation to produce a biological product. Also provided are methods for increasing expression of laccase in a bacterial species to produce increased lignin degradation. Also provided are bacterial cells and commodities or commodity produces produced from such methods.
    Type: Application
    Filed: March 28, 2016
    Publication date: August 2, 2018
    Inventors: Shuhua Yuan, Shangxian Xie, Xin Wang
  • Publication number: 20170226526
    Abstract: The invention relates to genetic constructs encoding a compartmenting peptide, wherein expression of the compartmenting peptide leads to formation of a droplet body comprising a targeted biological product, and to vectors including such constructs. The invention also relates to methods of increasing the yield of a biological product in a plant, and to methods for producing a transgenic plant which produces an increased yield of a biological product. The invention also relates to transgenic plants, host cells, plant propagation products and plant parts. The invention also relates to the biological products themselves, produced according to the invention.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 10, 2017
    Inventors: Shuhua Yuan, Xin Wang
  • Publication number: 20140259220
    Abstract: The present invention provides methods for increasing plant biomass and plant seed yield through overexpression of a PHB gene. Also provided are plants with increased biomass and seed yield comprising overexpression of a PHB gene produced by such methods. Plants described herein may be used, for example, for improved production of biofuels.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 11, 2014
    Applicant: The Texas A&M University System
    Inventor: Shuhua Yuan
  • Publication number: 20120282651
    Abstract: One of the most important technical barriers for algal biofuel is the substantial harvesting and extracting cost. The present invention includes a system and method for the pelletization of single cell microalgae through co-cultivation with filamentous fungi to enable the low cost separation of microalgae from liquid medium and to significantly increase the biomass and lipid yield. The approach represents a simple and straightforward method to significantly reduce the cost for algae-based biofuel production and enable the economically viable algae biofuel production.
    Type: Application
    Filed: January 9, 2012
    Publication date: November 8, 2012
    Inventors: Joshua (Shuhua) YUAN, Shangxian XIE