Patents by Inventor Dongmei Xu

Dongmei Xu 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).

  • Tobacco plants having reduced nicotine demethylase activity
    Patent number: 11332753
    Abstract: The present invention generally relates to methods and materials involved in producing tobacco plants having reduced levels of conversion of nicotine to nornicotine. In certain embodiments, the invention is directed to mutations in a nicotine demethylase gene, tobacco plants comprising mutations in a nicotine demethylase gene, and tobacco compositions and products thereof. In other embodiments, the invention is directed toward nicotine demethylase RNA interference, tobacco plants comprising a nicotine demethylase RNA interference transgene, and tobacco compositions and products thereof.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: May 17, 2022
    Assignee: U.S. Smokeless Tobacco Company LLC
    Inventors: Dongmei Xu, Mark T. Nielsen, Yanxin Shen
  • TOBACCO PLANTS HAVING INCREASED NITROGEN EFFICIENCY AND METHODS OF USING SUCH PLANTS
    Publication number: 20220142228
    Abstract: This disclosure provides a number of sequences involved in nitrogen utilization, methods of using such sequences, tobacco plants carrying modifications to such sequences, tobacco plants transgenic for such sequences, and tobacco products made from such plants.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 12, 2022
    Applicant: ALTRIA CLIENT SERVICES LLC
    Inventors: Jesse FREDERICK, Chengalrayan KUDITHIPUDI, Dongmei XU
  • Low-nicotine tobacco plants and tobacco products made therefrom
    Patent number: 11317593
    Abstract: The present application provides tobacco inbred plants dS1746, dS1746MS, dS1564 and dS1564MS. The present application also provides parts of such plants and products made from those parts. The present application also includes progeny of the provided plants including hybrids.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 3, 2022
    Assignee: Altria Client Services LLC
    Inventors: Andrew C. Adams, Marcos F. de Godoy Lusso, Sreepriya Pramod, Dongmei Xu
  • Genetic locus imparting a low anatabine trait in tobacco and methods of using
    Patent number: 11299743
    Abstract: Provided herein are genetic markers and a coding sequence associated with a low- or ultra-low anatabine trait in tobacco.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: April 12, 2022
    Assignee: Altria Client Services LLC
    Inventors: Chengalrayan Kudithipudi, Alec J. Hayes, Robert Frank Hart, III, Yanxin Shen, Jesse Frederick, Dongmei Xu
  • Optimized tissue-preferred promoter and uses thereof
    Patent number: 11293030
    Abstract: The present disclosure provides the identification of promoters that are preferentially active in tobacco axillary buds. Also provided are tobacco plants comprising reduced or no sucker growth. Also provided are methods and compositions for producing tobacco plants comprising reduced or no sucker growth.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: April 5, 2022
    Assignee: Altria Client Services LLC
    Inventors: Chengalrayan Kudithipudi, Jaemo Yang, Yanxin Shen, Dongmei Xu, Ujwala Warek, James Strickland, Jesse Frederick
  • GENETIC CONTROL OF AXILLARY BUD GROWTH IN TOBACCO PLANTS
    Publication number: 20220098604
    Abstract: This disclosure provides a number of sequences involved in axillary bud growth in tobacco, methods of using such sequences, tobacco plants carrying modifications to such sequences or transgenes of such sequences, and tobacco products made from tobacco leaf harvested from such plants.
    Type: Application
    Filed: December 15, 2021
    Publication date: March 31, 2022
    Applicant: ALTRIA CLIENT SERVICES LLC
    Inventors: Chengalrayan KUDITHIPUDI, Yanxin SHEN, Dongmei XU, Jesse FREDERICK, Jaemo YANG
  • Tobacco plants having increased nitrogen efficiency and methods of using such plants
    Patent number: 11266174
    Abstract: This disclosure provides a number of sequences involved in nitrogen utilization, methods of using such sequences, tobacco plants carrying modifications to such sequences, tobacco plants transgenic for such sequences, and tobacco products made from such plants.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: March 8, 2022
    Assignee: Altria Client Services LLC
    Inventors: Jesse Frederick, Chengalrayan Kudithipudi, Dongmei Xu
  • TOBACCO PLANTS EXHIBITING ALTERED PHOTOSYNTHESIS AND METHODS OF MAKING AND USING
    Publication number: 20220049266
    Abstract: This disclosure provides tobacco plants that exhibit altered photosynthesis as well as methods of making and using such plants.
    Type: Application
    Filed: November 3, 2021
    Publication date: February 17, 2022
    Applicant: Altria Client Services LLC
    Inventors: Yanxin Shen, Dongmei Xu
  • Genetic control of axillary bud growth in tobacco plants
    Patent number: 11236349
    Abstract: This disclosure provides a number of sequences involved in axillary bud growth in tobacco, methods of using such sequences, tobacco plants carrying modifications to such sequences or transgenes of such sequences, and tobacco products made from tobacco leaf harvested from such plants.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: February 1, 2022
    Assignee: Altria Client Services LLC
    Inventors: Chengalrayan Kudithipudi, Yanxin Shen, Dongmei Xu, Jesse Frederick, Jaemo Yang
  • COMPOSITIONS AND METHODS FOR PRODUCING TOBACCO PLANTS AND PRODUCTS HAVING ALTERED ALKALOID LEVELS
    Publication number: 20220010324
    Abstract: The present disclosure provides tobacco having genetic modification(s) in a group of ERF genes. Also provided are tobacco plants with altered total alkaloid and nicotine levels and commercially acceptable leaf grade, their development via breeding or transgenic approaches, and production of tobacco products from these tobacco plants. Further provided are compositions and methods for producing tobacco plants having novel mutations or alleles to reduce nicotine levels. Further provided are sequence polymorphisms and molecular markers for breeding tobacco with reduced nicotine or alkaloids while maintaining tobacco leaf grade and tobacco product quality.
    Type: Application
    Filed: June 2, 2021
    Publication date: January 13, 2022
    Applicant: ALTRIA CLIENT SERVICES LLC
    Inventors: Sreepriya PRAMOD, Marcos Fernando de GODOY LUSSO, Jesse FREDERICK, Andrew ADAMS, Dongmei XU
  • Compositions and methods for producing tobacco plants and products having altered alkaloid levels with desirable leaf quality
    Patent number: 11220695
    Abstract: The present disclosure includes methods and compositions for improving leaf quality in low-alkaloid tobacco plants, e.g., by combining inducible promoters and non-coding RNAs for suppression of an ornithine decarboxylase (ODC) gene. Also provided are low alkaloid tobacco plants with normal, suppressed, or otherwise altered polyamine levels. Further provided are tobacco plants with altered total alkaloid, nicotine levels, commercially acceptable leaf grade, their development via breeding or transgenic approaches, and production of tobacco products from these tobacco plants.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: January 11, 2022
    Assignee: ALTRIA CLIENT SERVICES LLC
    Inventors: Marcos Fernando de Godoy Lusso, James A Strickland, Jesse Frederick, Dongmei Xu, Chengalrayan Kudithipudi
  • HYBRID AIR AND FIRE CURING COMBINATION PROCESS TO REDUCE HARMFUL AND POTENTIALLY HARMFUL CONSTITUENTS IN CURED TOBACCO
    Publication number: 20210360960
    Abstract: The present specification provides for and includes novel methods of curing tobacco to produce desirable smoke and flavor characteristics while reducing the undesirable compounds imparted during a conventional fire-curing process. The present specification provides for and includes cured tobacco having reduced polyaromatic hydrocarbons and TSNA as compared to conventionally fire-cured tobacco. Also provided are tobacco products made with tobacco leaf cured using the disclosed processes.
    Type: Application
    Filed: May 19, 2021
    Publication date: November 25, 2021
    Applicant: ALTRIA CLIENT SERVICES LLC
    Inventors: Robert Franklin HART, III, Dongmei XU, Marcos Fernando de Godoy LUSSO, Jerry Whit MORRIS, Kenworth LION, Lionel DELOACH
  • Tobacco plants exhibiting altered photosynthesis and methods of making and using
    Patent number: 11174490
    Abstract: This disclosure provides tobacco plants that exhibit altered photosynthesis as well as methods of making and using such plants.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 16, 2021
    Assignee: Altria Client Services LLC
    Inventors: Yanxin Shen, Dongmei Xu
  • Composition and Methods for Producing Tobacco Plants and Products Having Reduced Tobacco-Specific Nitrosamines (TSNAs)
    Publication number: 20210275980
    Abstract: The present disclosure provides approaches for reducing tobacco-specific nitrosamines (TSNAs) in tobacco. Some of these approaches include genetically engineering tobacco plants to increase one or more antioxidants, increase oxygen radicle absorbance capacity (ORAC), or reduce nitrite. Also provided are methods and compositions for producing modified tobacco plants and tobacco products therefrom comprising reduced TSNAs.
    Type: Application
    Filed: April 2, 2020
    Publication date: September 9, 2021
    Inventors: Chengalrayan KUDITHIPUDI, Dongmei XU, James Strickland
  • Compositions and methods for producing tobacco plants and products having reduced or eliminated suckers
    Patent number: 11104912
    Abstract: The present disclosure provides the identification of genes involved in sucker growth in tobacco. Also provided are promoters that are preferentially active in tobacco axillary buds. Also provided are modified tobacco plants comprising reduced or no sucker growth. Also provided are methods and compositions for producing modified tobacco plants comprising reduced or no sucker growth.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: August 31, 2021
    Assignee: ALTRIA CLIENT SERVICES LLC
    Inventors: Dongmei Xu, Jesse Frederick, Chengalrayan Kudithipudi, Yanxin Shen, James Strickland, Jaemo Yang
  • Endolysin from bacteriophage against geobacillus and methods of using
    Patent number: 11096414
    Abstract: Bacteriophage against Geobacillus are provided, and methods of making and using the bacteriophage also are provided.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: August 24, 2021
    Assignee: ALTRIA CLIENT SERVICES LLC
    Inventors: Elisabeth Miller, Ujwala Warek, Dongmei Xu
  • METHODS AND COMPOSITIONS RELATED TO IMPROVED NITROGEN USE EFFICIENCY
    Publication number: 20210230627
    Abstract: The present disclosure provides products, compositions, and methods for improving nitrogen use efficiency in tobacco plants, including e.g., Burley tobacco. This disclosure further provides genetic markers for tracking enhanced nitrogen use efficiency phenotypes in tobacco plants and for introgressing enhanced nitrogen use efficiency phenotypes into tobacco plants. The disclosure also provides tobacco plants comprising enhanced nitrogen use efficiency and methods to the creation of tobacco plants comprising enhanced nitrogen use efficiency.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 29, 2021
    Applicant: ALTRIA CLIENT SERVICES LLC
    Inventors: Jesse FREDERICK, Andrew Carl ADAMS, Dongmei XU
  • Bacteriophage and methods of making and using
    Patent number: 11034936
    Abstract: Bacteriophage are provided, and methods of making and using the bacteriophage also are provided.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: June 15, 2021
    Assignee: Altria Client Services LLC
    Inventors: Dongmei Xu, Elisabeth Miller, James Arthur Strickland, Ujwala Warek, Steven Hagens
  • Nicotiana nucleic acid molecules and uses thereof
    Patent number: 11000059
    Abstract: The present invention features Nicotiana nucleic acid sequences such as sequences encoding constitutive, or ethylene or senescence induced polypeptides, in particular cytochrome p450 enzymes, in Nicotiana plants and methods for using these nucleic acid sequences and plants to alter desirable traits, for example by using breeding protocols.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: May 11, 2021
    Assignee: U.S. SMOKELESS TOBACCO COMPANY LLC
    Inventors: Dongmei Xu, Mark T. Nielsen, Yanxin Shen
  • PALE YELLOW LOCUS AND ITS APPLICATIONS IN TOBACCO
    Publication number: 20210108219
    Abstract: The present disclosure relates to tobacco plants, tobacco seeds, compositions, and methods related to the identification and introgression of the Pale Yellow locus in tobacco. It also relates to generating novel mutations within the PY locus in tobacco.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 15, 2021
    Inventors: Sreepriya PRAMOD, Andrew C. ADAMS, Marcos Fernando DE GODOY LUSSO, Gregory A. DAVIS, Jerry W. MORRIS, Dongmei XU, Jesse FREDERICK