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).

  • Perchloroethylene derivative and use thereof
    Patent number: 11447625
    Abstract: The present invention relates to the technical field of polymer spectral probes, and particularly to a perchloroethylene derivative and use thereof. The perchloroethylene derivative is prepared by reacting a compound A and a perchloroethylene resin. According to the present invention, the fluorescent polymer can be used as a high-selectivity and high-sensitivity enhanced colorimetric and fluorescent polymer probe for Fe3+ and Cr3+ As compared with the organic small molecule spectral probe, the polymer spectral probe has improved mechanical property, film forming property and excellent recyclability, and thus has a strong practicability.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: September 20, 2022
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Dongmei Xu, Wenbo Guo
  • GENETIC LOCUS IMPARTING A LOW ANATABINE TRAIT IN TOBACCO AND METHODS OF USING
    Publication number: 20220267787
    Abstract: Provided herein are genetic markers and a coding sequence associated with a low- or ultra-low anatabine trait in tobacco.
    Type: Application
    Filed: February 28, 2022
    Publication date: August 25, 2022
    Applicant: ALTRIA CLIENT SERVICES LLC
    Inventors: Chengalrayan Kudiputhi, Alec J. Hayes, Robert Frank Hart, Yanxin Shen, Jesse Frederick, Dongmei Xu
  • OPTIMIZED TISSUE-PREFERRED PROMOTER AND USES THEREOF
    Publication number: 20220267785
    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: Application
    Filed: March 1, 2022
    Publication date: August 25, 2022
    Applicant: Altria Client Services LLC
    Inventors: Chengalrayan KUDITHIPUDI, Jaemo Yang, Yanxin Shen, Dongmei Xu, Ujwala Warek, James Strickland, Jesse Frederick
  • Low-Nicotine Tobacco Plants and Tobacco Products Made Therefrom
    Publication number: 20220240474
    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: Application
    Filed: March 25, 2022
    Publication date: August 4, 2022
    Applicant: Altria Client Services LLC
    Inventors: Andrew C. Adams, Marcos F. de GODOY LUSSO, Sreepriya PRAMOD, Dongmei XU
  • INCREASING TRICHOME DENSITY AND IMPROVING TRANSPORT OF METABOLITES IN PLANT TRICHOMES
    Publication number: 20220243216
    Abstract: The present disclosure relates to compositions and methods related to modification of trichome density and transport of metabolite and their uses in plants, including tobacco and cannabis. The provided transcription factors enable the increase in trichome density in plants.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 4, 2022
    Inventors: Chengalrayan KUDITHIPUDI, Yanxin SHEN, Dongmei XU, Michael Paul TIMKO, Roel RABARA
  • TERPENE PRODUCTION IN PLANTS
    Publication number: 20220243215
    Abstract: Composition and methods for the modification of the secondary metabolic functions of glandular trichomes in plants, such as tobacco or Cannabis, that control the formation of terpenes that impart specific flavor and aroma characteristics to the plant leaves are provided. Enhanced terpene production and composition are achieved through targeted modification in the biochemical synthesis pathways for menthol and cis-abienol. This application provides novel nucleotide sequences encoding the enzymology for production of these terpenes in tobacco and Cannabis application to their use plants.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 4, 2022
    Inventors: Chengalrayan KUDITHIPUDI, Yanxin SHEN, Dongmei XU, Michael Paul TIMKO, Roel RABARA
  • TISSUE-SPECIFIC PROMOTERS IN PLANTS
    Publication number: 20220243214
    Abstract: The present disclosure relates to compositions and methods related to tissue-specific promoters and their uses in plants, including tobacco and cannabis. The provided trichome-specific promoters enable the expression of heterologous polynucleotides in trichome tissues.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 4, 2022
    Inventors: Chengalrayan Kudithipudi, Yaxin Shen, Dongmei Xu, Michael Paul Timko, Roeol Rabara
  • Compositions and methods based on PMT engineering for producing tobacco plants and products having altered alkaloid levels
    Patent number: 11384361
    Abstract: The present disclosure provides compositions and methods related to 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.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: July 12, 2022
    Assignee: Altria Client Services LLC
    Inventors: Chengalrayan Kudithipudi, Dong Qi, Yanxin Shen, Ujwala Warek, James A. Strickland, Dongmei Xu
  • Composition and methods for producing tobacco plants and products having increased phenylalanine and reduced tobacco-specific nitrosamines (TSNAs)
    Patent number: 11377665
    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), increase phenylalanine, or reduce nitrite. Also provided are methods and compositions for producing modified tobacco plants and tobacco products therefrom comprising reduced TSNAs. Also provided are methods and compositions for increasing the expression of chorismate mutase and other transcription factors involved in anthocyanin biosynthesis.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: July 5, 2022
    Assignee: Altria Client Services LLC
    Inventors: Chengalrayan Kudithipudi, Dongmei Xu, James Strickland, Yanxin Shen
  • COMPOSITIONS AND METHODS FOR PRODUCING TOBACCO PLANTS AND PRODUCTS HAVING ALTERED ALKALOID LEVELS WITH DESIRABLE LEAF QUALITY
    Publication number: 20220204981
    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: Application
    Filed: January 7, 2022
    Publication date: June 30, 2022
    Applicant: Altria Client Services LLC
    Inventors: Marcos Fernando de GODOY LUSSO, James A. STRICKLAND, Jesse FREDERICK, Dongmei XU, Chengalrayan KUDITHIPUDI
  • 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