Patents by Inventor Heng-Yen Wang

Heng-Yen Wang 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: 10981849
    Abstract: Provided is a method for preparing synthetic cannabidiol, including hydrolysis-decarboxylation of a compound represented by formula (II) in a solvent-free state under atmospheric pressure. The method further includes preparation of the compound represented by formula (II). The method provides a safe, economical, environmentally friendly and scalable method for synthetic preparation of cannabidiol.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: April 20, 2021
    Assignee: SCI PHARMTECH INC.
    Inventors: Heng-Yen Wang, Feng-Hsu Li, Zhi-Jie Yang, Hsin-Yi Huang
  • Publication number: 20200331910
    Abstract: Disclosed are compounds that are shown to inhibit the biological activity of nitric oxide synthases (NOSs). Also disclosed are pharmaceutical compositions comprising the compounds, and methods of using the compounds and pharmaceutical compositions for treating a subject in need thereof. Because the disclosed compounds are shown to inhibit the activity of nitric oxide synthases (NOSs), the disclosed compounds and pharmaceutical compositions may be utilized in methods for treating a subject having or at risk for developing a disease or disorder that is associated with NOS activity.
    Type: Application
    Filed: June 26, 2020
    Publication date: October 22, 2020
    Inventors: Richard B. Silverman, Heng-Yen Wang, Yajuan Qin, Fengwei Zou, Soo Sung Kang, Qing Jing
  • Patent number: 10759791
    Abstract: Disclosed are compounds that are shown to inhibit the biological activity of nitric oxide synthases (NOSs). Also disclosed are pharmaceutical compositions comprising the compounds, and methods of using the compounds and pharmaceutical compositions for treating a subject in need thereof. Because the disclosed compounds are shown to inhibit the activity of nitric oxide synthases (NOSs), the disclosed compounds and pharmaceutical compositions may be utilized in methods for treating a subject having or at risk for developing a disease or disorder that is associated with NOS activity.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: September 1, 2020
    Assignee: Northwestern University
    Inventors: Richard B. Silverman, Heng-Yen Wang, Yajuan Qin, Fengwei Zou, Soo Sung Kang, Qing Jing
  • Patent number: 10556899
    Abstract: Provided is a method for preparing a tropane derivative, maraviroc, including reacting a compound of formula (II) with a compound of formula (I), wherein the compound of formula (II) is prepared by the steps of acetylation of a compound of formula (III), activation and substitution of a compound of formula (IV) by a chlorination agent, cyclization of a compound of formula (V), and debenzylation of a compound of formula (VI) by hydrogenation. Hence, the present disclosure provides a method for preparing maraviroc with good yield and simple operation.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: February 11, 2020
    Assignee: SCI Pharmtech, Inc.
    Inventors: Heng-Yen Wang, Chen-Yi Kao
  • Publication number: 20190248782
    Abstract: Provided is a method for preparing a tropane derivative, maraviroc, including reacting a compound of formula (II) with a compound of formula (I), wherein the compound of formula (II) is prepared by the steps of acetylation of a compound of formula (III), activation and substitution of a compound of formula (IV) by a chlorination agent, cyclization of a compound of formula (V), and debenzylation of a compound of formula (VI) by hydrogenation. Hence, the present disclosure provides a method for preparing maraviroc with good yield and simple operation.
    Type: Application
    Filed: January 25, 2019
    Publication date: August 15, 2019
    Inventors: Heng-Yen Wang, Chen-Yi Kao
  • Patent number: 9951014
    Abstract: Compounds and related methods for inhibition of mammalian and bacterial nitric oxide synthase.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: April 24, 2018
    Assignee: Northwestern University
    Inventors: Richard B. Silverman, Qing Jing, Soosung Kang, Heng-Yen Wang
  • Publication number: 20170275278
    Abstract: Disclosed are compounds that are shown to inhibit the biological activity of nitric oxide synthases (NOSs). Also disclosed are pharmaceutical compositions comprising the compounds, and methods of using the compounds and pharmaceutical compositions for treating a subject in need thereof. Because the disclosed compounds are shown to inhibit the activity of nitric oxide synthases (NOSs), the disclosed compounds and pharmaceutical compositions may be utilized in methods for treating a subject having or at risk for developing a disease or disorder that is associated with NOS activity.
    Type: Application
    Filed: April 7, 2017
    Publication date: September 28, 2017
    Applicant: Northwestern University
    Inventors: Richard B. Silverman, Heng-Yen Wang, Yajuan Qin, Fengwei Zou, Soo Sung Kang, Qing Jing
  • Publication number: 20160122302
    Abstract: Compounds and related methods for inhibition of mammalian and bacterial nitric oxide synthase.
    Type: Application
    Filed: November 4, 2015
    Publication date: May 5, 2016
    Inventors: Richard B. Silverman, Qing Jing, Soosung Kang, Heng-Yen Wang