Patents by Inventor Richard Schlegel

Richard Schlegel 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).

  • Patent number: 12128024
    Abstract: In certain aspects, the invention relates to methods of treating proliferative cervical disorders (such as cervical cancer and cervical dysplasia) and treating virus infection by administering artemisinin-related compounds. In certain aspects, the invention relates to methods of treating a tumor induced by an oncogenic virus, methods of killing or inhibiting a squamous cell carcinoma, and methods of inhibiting the replication of a virus, by administering artemisinin-related compounds.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: October 29, 2024
    Assignee: Georgetown University
    Inventors: Richard Schlegel, Dan-Paul Hartmann, Astrid Baege
  • Publication number: 20230233520
    Abstract: Methods of treating human papillomavirus (HPV)-induced conditions, HPV-induced lesions, or HPV-infected cells. The method involves administering one or more artemisinin-related compounds and one or more histone deacetylase (HDAC) inhibitors. In addition, treatment regimens involving the use of artemisinin-related compounds and HDAC inhibitors, and kits comprising pharmaceutical compositions of artemisinin-related compounds and HDAC inhibitors.
    Type: Application
    Filed: April 23, 2021
    Publication date: July 27, 2023
    Applicant: Georgetown University
    Inventors: Richard Schlegel, Hang Yuan
  • Publication number: 20230167414
    Abstract: Methods of generating a population of tumor cells, such as circulating tumor cells (CTCs) isolated from fluid from a subject. The methods involve collecting a fluid sample containing the tumor cells from the subject, and culturing the tumor cells in the fluid sample in a three-dimensional cell culture, wherein the three-dimensional cell culture comprises at least one inhibitor of Rho-kinase to generate the population of CTCs. If the fluid is whole blood or contains blood, the method may also involve subjecting the fluid sample to density gradient separation to separate the tumor cells from the fluid prior to culturing. In addition, methods of identifying a candidate treatment for a subject having a condition marked by the presence of tumor cells, methods of monitoring in a subject the persistence, regression, or progression of a disease or condition marked by the presence of tumor cells, and methods of generating a cell line of tumor cells.
    Type: Application
    Filed: April 26, 2021
    Publication date: June 1, 2023
    Applicant: Georgetown University
    Inventors: Paula R. Pohlmann, Seema Agarwal, Richard Schlegel
  • Patent number: 11001808
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: May 11, 2021
    Assignee: Georgetown University
    Inventors: Richard Schlegel, Xuefeng Liu
  • Publication number: 20210038565
    Abstract: In certain aspects, the invention relates to methods of treating proliferative cervical disorders (such as cervical cancer and cervical dysplasia) and treating virus infection by administering artemisinin-related compounds. In certain aspects, the invention relates to methods of treating a tumor induced by an oncogenic virus, methods of killing or inhibiting a squamous cell carcinoma, and methods of inhibiting the replication of a virus, by administering artemisinin-related compounds.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 11, 2021
    Applicant: GEORGETOWN UNIVERSITY
    Inventors: Richard Schlegel, Dan-Paul Hartmann, Astrid Baege
  • Publication number: 20190269648
    Abstract: In certain aspects, the invention relates to methods of treating proliferative cervical disorders (such as cervical cancer and cervical dysplasia) and treating virus infection by administering artemisinin-related compounds. In certain aspects, the invention relates to methods of treating a tumor induced by an oncogenic virus, methods of killing or inhibiting a squamous cell carcinoma, and methods of inhibiting the replication of a virus, by administering artemisinin-related compounds.
    Type: Application
    Filed: October 5, 2018
    Publication date: September 5, 2019
    Applicant: Georgetown University
    Inventors: Richard Schlegel, Dan-Paul Hartmann, Astrid Baege
  • Publication number: 20190233798
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Application
    Filed: April 4, 2018
    Publication date: August 1, 2019
    Inventors: Richard Schlegel, Xuefeng Liu
  • Patent number: 10041048
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: August 7, 2018
    Assignee: Georgetown University
    Inventors: Richard Schlegel, Xuefeng Liu
  • Patent number: 9951315
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: April 24, 2018
    Assignee: Georgetown University
    Inventors: Richard Schlegel, Xuefeng Liu
  • Publication number: 20170246145
    Abstract: In certain aspects, the invention relates to methods of treating proliferative cervical disorders (such as cervical cancer and cervical dysplasia) and treating virus infection by administering artemisinin-related compounds. In certain aspects, the invention relates to methods of treating a tumor induced by an oncogenic virus, methods of killing or inhibiting a squamous cell carcinoma, and methods of inhibiting the replication of a virus, by administering artemisinin-related compounds.
    Type: Application
    Filed: October 13, 2016
    Publication date: August 31, 2017
    Inventors: Richard Schlegel, Dan-Paul Hartmann, Astrid Baege
  • Patent number: 9657272
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 23, 2017
    Assignee: Georgetown University
    Inventors: Richard Schlegel, Xuefeng Liu
  • Publication number: 20160289643
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Application
    Filed: February 10, 2016
    Publication date: October 6, 2016
    Inventors: Richard Schlegel, Xuefeng Liu
  • Publication number: 20160289644
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Application
    Filed: February 10, 2016
    Publication date: October 6, 2016
    Inventors: Richard Schlegel, Xuefeng Liu
  • Patent number: 9279106
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: March 8, 2016
    Assignee: Georgetown University
    Inventors: Richard Schlegel, Xuefeng Liu
  • Publication number: 20150196530
    Abstract: In certain aspects, the invention relates to methods of treating proliferative cervical disorders (such as cervical cancer and cervical dysplasia) and treating virus infection by administering artemisinin-related compounds. In certain aspects, the invention relates to methods of treating a tumor induced by an oncogenic virus, methods of killing or inhibiting a squamous cell carcinoma, and methods of inhibiting the replication of a virus, by administering artemisinin-related compounds.
    Type: Application
    Filed: January 26, 2015
    Publication date: July 16, 2015
    Inventors: Richard Schlegel, Dan-Paul Hartmann, Astrid Baege
  • Publication number: 20150099267
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 9, 2015
    Inventors: Richard Schlegel, Xuefeng Liu
  • Patent number: 8940787
    Abstract: In certain aspects, the invention relates to methods of treating proliferative cervical disorders (such as cervical cancer and cervical dysplasia) and treating virus infection by administering artemisinin-related compounds. In certain aspects, the invention relates to methods of treating a tumor induced by an oncogenic virus, methods of killing or inhibiting a squamous cell carcinoma, and methods of inhibiting the replication of a virus, by administering artemisinin-related compounds.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: January 27, 2015
    Assignee: Georgetown University
    Inventors: Richard Schlegel, Dan-Paul Hartmann, Astrid Baege
  • Publication number: 20140322809
    Abstract: Disclosed herein is the finding that treatment with a ROCK inhibitor increases proliferation and induces immortalization of primary keratinocytes. Accordingly, provided is a method of immortalizing primary keratinocytes by exposure to a ROCK inhibitor. Also provided are immortalized primary keratinocytes produced by the described method, as well as organotypic tissue equivalents and cell cultures comprising the immortalized primary keratinocytes. Furthermore, ROCK inhibitor-treated cells show a greatly increased ability to support viral DNA replication of both “low risk” and “high risk” HPV genomes, indicating that ROCK inhibitors will be useful for studying the life cycles of a wide range of HPVs.
    Type: Application
    Filed: November 20, 2013
    Publication date: October 30, 2014
    Applicants: The United States of America as Represented by the Secretary, Department of Health and Human Service, Georgetown University
    Inventors: Alison McBride, Sandra Chapman, Richard Schlegel, Xuefeng Liu
  • Publication number: 20130309681
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Application
    Filed: November 11, 2011
    Publication date: November 21, 2013
    Applicant: Georgetown University
    Inventors: Richard Schlegel, Xuefeng Liu
  • Patent number: D1049859
    Type: Grant
    Filed: June 22, 2023
    Date of Patent: November 5, 2024
    Assignee: The Procter & Gamble Company
    Inventors: Julian Richard John Gruzelier, Gillian Meredith Anne Haro, Brett Tom, Wei Gu, Reid Andersen Schlegel, Danvu Nam Nguyen, Calvin Shenghuai Lin, Longfei Zhang