Patents by Inventor Guochen Chi

Guochen Chi 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).

  • Methylphenidate-Prodrugs, Processes of Making and Using the Same
    Publication number: 20170049765
    Abstract: The present technology is directed to prodrugs and compositions for the treatment of various diseases and/or disorders comprising methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof. In some embodiments, the conjugates further include at least one linker. The present technology also relates to the synthesis of methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof or combinations thereof.
    Type: Application
    Filed: August 26, 2016
    Publication date: February 23, 2017
    Inventors: Sven Guenther, Guochen Chi, Bindu Bera, Travis Mickle, Sanjib Bera
  • Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydromorphone, prodrugs, methods of making and use thereof
    Patent number: 9566343
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydromorphone (4,5-?-epoxy-3-hydroxy-17-methyl morphinan-6-one) to form novel prodrugs/compositions of hydromorphone. The hydromorphone prodrugs of the present technology have decreased side effects and decreased potential for abuse compared to unconjugated hydromorphone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: February 14, 2017
    Assignee: KemPharm, Inc.
    Inventors: Travis Mickle, Sven Guenther, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and uses thereof
    Patent number: 9549923
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: January 24, 2017
    Assignee: KemPharm, Inc.
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Methylphenidate-prodrugs, processes of making and using the same
    Patent number: 9453037
    Abstract: The present technology is directed to prodrugs and compositions for the treatment of various diseases and/or disorders comprising methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof. In some embodiments, the conjugates further include at least one linker. The present technology also relates to the synthesis of methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof or combinations thereof.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: September 27, 2016
    Assignee: KEMPHARM, INC
    Inventors: Sven Guenther, Guochen Chi, Bindu Bera, Travis Mickle, Sanjib Bera
  • Benzoic Acid, Benzoic Acid Derivatives and Heteroaryl Carboxylic Acid Conjugates of Hydrocodone, Prodrugs, Methods of Making and Uses Thereof
    Publication number: 20160200731
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Application
    Filed: March 21, 2016
    Publication date: July 14, 2016
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Benzoic Acid, Benzoic Acid Derivatives and Heteroaryl Carboxylic Acid Conjugates of Hydrocodone, Prodrugs, Methods of Making and Uses Thereof
    Publication number: 20160193204
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Application
    Filed: August 4, 2015
    Publication date: July 7, 2016
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Benzoic Acid, Benzoic Acid Derivatives and Heteroaryl Carboxylic Acid Conjugates of Hydrocodone, Prodrugs, Methods of Making and Use Thereof
    Publication number: 20150335759
    Abstract: The presently described technology provides methods of treating a patient having moderate to severe pain, narcotic or opioid abuse or narcotic or opioid withdrawal. The presently described methods are carried out by comprising administering to the patient a pharmaceutically effective amount of a composition comprising acetaminophen and benzoate-hydrocodone hydrochloride. The composition has reduced side effects when compared with unconjugated hydrocodone.
    Type: Application
    Filed: August 3, 2015
    Publication date: November 26, 2015
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Methylphenidate-Prodrugs, Processes of Making and Using the Same
    Publication number: 20150266911
    Abstract: The present technology is directed to prodrugs and compositions for the treatment of various diseases and/or disorders comprising methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof. In some embodiments, the conjugates further include at least one linker. The present technology also relates to the synthesis of methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof or combinations thereof.
    Type: Application
    Filed: June 1, 2015
    Publication date: September 24, 2015
    Inventors: Sven Guenther, Guochen Chi, Bindu Bera, Travis Mickle, Sanjib Bera
  • Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
    Patent number: 9132125
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: September 15, 2015
    Assignee: KemPharm, Inc.
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Methylphenidate-oxoacid conjugates, processes of making and using the same
    Patent number: 9079928
    Abstract: The present technology is directed to prodrugs and compositions for the treatment of various diseases and/or disorders comprising methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof. In some embodiments, the conjugates further include at least one linker. The present technology also relates to the synthesis of methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof or combinations thereof.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: July 14, 2015
    Assignee: KemPharm, Inc.
    Inventors: Sven Guenther, Guochen Chi, Bindu Bera, Travis Mickle, Sanjib Bera
  • Benzoic Acid, Benzoic Acid Derivatives and Heteroaryl Carboxylic Acid Conjugates of Hydrocodone, Prodrugs, Methods of Making and Use Thereof
    Publication number: 20150087667
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Benzoic Acid, Benzoic Acid Derivatives and Heteroaryl Carboxylic Acid Conjugates of Hydrocodone, Prodrugs, Methods of Making and Uses Thereof
    Publication number: 20150065536
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
    Patent number: 8927716
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: January 6, 2015
    Assignee: KemPharm, Inc.
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Benzoic Acid, Benzoic Acid Derivatives and Heteroaryl Carboxylic Acid Conjugates of Hydromorphone, Prodrugs, Methods of Making and Use Thereof
    Publication number: 20140330021
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydromorphone (4,5-?-epoxy-3-hydroxy-17-methyl morphinan-6-one) to form novel prodrugs/compositions of hydromorphone. The hydromorphone prodrugs of the present technology have decreased side effects and decreased potential for abuse compared to unconjugated hydromorphone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Application
    Filed: July 21, 2014
    Publication date: November 6, 2014
    Inventors: Travis Mickle, Sven Guenther, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Phenylethanoic acid, phenylpropanoic acid and phenylpropenoic acid conjugates and prodrugs of hydrocodone, method of making and use thereof
    Patent number: 8871780
    Abstract: The presently described technology provides phenylethanoic acid, phenylpropanoic acid, phenylpropenoic acid, a salt thereof, a derivative thereof or a combination thereof chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs or compositions of hydrocodone which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: October 28, 2014
    Assignee: KemPharm, Inc.
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
    Patent number: 8828978
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: September 9, 2014
    Assignee: KemPharm, Inc.
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • METHYLPHENIDATE-OXOACID CONJUGATES, PROCESSES OF MAKING AND USING THE SAME
    Publication number: 20140243291
    Abstract: The present technology is directed to prodrugs and compositions for the treatment of various diseases and/or disorders comprising methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof. In some embodiments, the conjugates further include at least one linker. The present technology also relates to the synthesis of methylphenidate, or methylphenidate derivatives, conjugated to at least one alcohol, amine, oxoacid, thiol, or derivatives thereof or combinations thereof.
    Type: Application
    Filed: July 27, 2012
    Publication date: August 28, 2014
    Inventors: Sven Guenther, Guochen Chi, Bindu Bera, Travis Mickle
  • Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydromorphone, prodrugs, methods of making and use thereof
    Patent number: 8816083
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydromorphone (4,5-?-epoxy-3-hydroxy-17-methyl morphinan-6-one) to form novel prodrugs/compositions of hydromorphone. The hydromorphone prodrugs of the present technology have decreased side effects and decreased potential for abuse compared to unconjugated hydromorphone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: August 26, 2014
    Assignee: KemPharm, Inc.
    Inventors: Travis Mickle, Sven Guenther, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
    Patent number: 8759368
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: June 24, 2014
    Assignee: KemPharma, Inc.
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera
  • Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof
    Patent number: 8748413
    Abstract: The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: June 10, 2014
    Assignee: KemPharm, Inc.
    Inventors: Travis Mickle, Sven Guenther, Christal Mickle, Guochen Chi, Jaroslaw Kanski, Andrea K. Martin, Bindu Bera