Patents by Inventor Guy Alan Schiehser

Guy Alan Schiehser 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).

  • Determining degradation of 3,4-diaminopyridine
    Patent number: 10626088
    Abstract: The present invention relates to methods of determining the purity of a sample of 3,4-diaminopyridine comprising determining the presence, absence, or amount of a dimer of 3,4-diaminopyridine or a dimer of 3,4-diaminopyridine in the form of a salt, solvate or complex or a combination thereof. The invention also relates to methods of detecting and quantitating degradation in a sample of 3,4-diaminopyridine. Dimers of 3,4-diaminopyridine and methods of making and isolating the same are also provided.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: April 21, 2020
    Assignee: JACOBUS PHARMACEUTICAL COMPANY, INC.
    Inventors: Guy Alan Schiehser, Rajendra Shah, Wenyi Zhao
  • Determining Degradation of 3,4-Diaminopyridine
    Publication number: 20180086710
    Abstract: The present invention relates to methods of determining the purity of a sample of 3,4-diaminopyridine comprising determining the presence, absence, or amount of a dimer of 3,4-diaminopyridine or a dimer of 3,4-diaminopyridine in the form of a salt, solvate or complex or a combination thereof. The invention also relates to methods of detecting and quantitating degradation in a sample of 3,4-diaminopyridine. Dimers of 3,4-diaminopyridine and methods of making and isolating the same are also provided.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 29, 2018
    Inventors: Guy Alan Schiehser, Rajendra Shah, Wenyi Zhao
  • Determining degradation of 3,4-diaminopyridine
    Patent number: 9783497
    Abstract: The present invention relates to methods of determining the purity of a sample of 3,4-diaminopyridine comprising determining the presence, absence, or amount of a dimer of 3,4-diaminopyridine or a dimer of 3,4-diaminopyridine in the form of a salt, solvate or complex or a combination thereof. The invention also relates to methods of detecting and quantitating degradation in a sample of 3,4-diaminopyridine. Dimers of 3,4-diaminopyridine and methods of making and isolating the same are also provided.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: October 10, 2017
    Assignee: Jacobus Pharmaceuticals, Inc.
    Inventors: Guy Alan Schiehser, Rajendra Shah, Wenyi Zhao
  • Heteroaryl derivatives and uses thereof
    Patent number: 9409893
    Abstract: The present invention relates to antimalarial compounds and their use against protozoa of the genus Plasmodium, including drug-resistant Plasmodia strains. This invention further relates to compositions containing such compounds and a process for making the compounds.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: August 9, 2016
    Assignee: Jacobus Pharmaceutical Company, Inc.
    Inventors: Gavin David Heffernan, David Penman Jacobus, Kurt William Saionz, Guy Alan Schiehser, Hong-Ming Shieh, Wenyi Zhao
  • Aryl derivatives and uses thereof
    Patent number: 9296696
    Abstract: The present invention relates to antimalarial compounds and their use against protozoa of the genus Plasmodium, including drug-resistant Plasmodia strains. This invention further relates to compositions containing such compounds and a process for making the compounds.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: March 29, 2016
    Assignee: Jacobus Pharmaceuticals Company, Inc.
    Inventors: Gavin David Heffernan, David Penman Jacobus, Guy Alan Schiehser, Hong-Ming Shieh, Wenyi Zhao
  • Aryl Derivatives And Uses Thereof
    Publication number: 20150080324
    Abstract: The present invention relates to antimalarial compounds and their use against protozoa of the genus Plasmodium, including drug-resistant Plasmodia strains. This invention further relates to compositions containing such compounds and a process for making the compounds.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 19, 2015
    Inventors: Gavin David Heffernan, David Penman Jacobus, Guy Alan Schiehser, Hong-Ming Shieh, Wenyi Zhao
  • Aryl derivatives and uses thereof
    Patent number: 8962657
    Abstract: The present invention relates to antimalarial compounds and their use against protozoa of the genus Plasmodium, including drug-resistant Plasmodia strains. This invention further relates to compositions containing such compounds and a process for making the compounds.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: February 24, 2015
    Assignee: Jacobus Pharmaceutical Company, Inc.
    Inventors: Gavin David Heffernan, David Penman Jacobus, Guy Alan Schiehser, Hong-Ming Shieh, Wenyi Zhao
  • HETEROARYL DERIVATIVES AND USES THEREOF
    Publication number: 20140135320
    Abstract: The present invention relates to antimalarial compounds and their use against protozoa of the genus Plasmodium, including drug-resistant Plasmodia strains. This invention further relates to compositions containing such compounds and a process for making the compounds.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 15, 2014
    Applicant: Jacobus Pharmaceutical Company, Inc.
    Inventors: Gavin David Heffernan, David Penman Jacobus, Kurt William Saionz, Guy Alan Schiehser, Hong-Ming Shieh, Wenyi Zhao
  • Aryl Derivatives And Uses Thereof
    Publication number: 20140135360
    Abstract: The present invention relates to antimalarial compounds and their use against protozoa of the genus Plasmodium, including drug-resistant Plasmodia strains. This invention further relates to compositions containing such compounds and a process for making the compounds.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 15, 2014
    Applicant: Jacobus Pharmaceutical Company, Inc
    Inventors: Gavin David Heffernan, David Penman Jacobus, Guy Alan Schiehser, Hong-Ming Shieh, Wenyi Zhao
  • METHOD OF TREATING INFLAMMATORY BOWEL DISEASE
    Publication number: 20100136125
    Abstract: Methods are disclosed for treating patients suffering from inflammatory bowel disease, including ulcerative colitis or Crohn's disease, by administering an oral or enema dosage form containing at least one aminosalicylate active ingredient. Granular dosage forms and kits are also disclosed.
    Type: Application
    Filed: December 26, 2007
    Publication date: June 3, 2010
    Applicant: Jacobus Pharmaceutical Company, Inc.
    Inventors: David P. Jacobus, Guy Alan Schiehser, Kathy Lynne Ales, Laura Ransom Jacobus