Patents by Inventor Karl Ploessl

Karl Ploessl 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).

  • Publication number: 20220125959
    Abstract: The present disclosure relates to compounds according to Formula I. These compounds display very good binding affinities to the PSMA binding sites. They comprise a radioactive isotope or a chelating moiety that can be labeled with a radioactive metal such as [68Ga]or [177Lu]. The present disclosure also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I or a complex thereof, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: April 27, 2020
    Publication date: April 28, 2022
    Inventors: Hank F. KUNG, Zhihao ZHA, Karl PLOESSL, Seok Rye CHOI
  • Publication number: 20210346526
    Abstract: The present invention relates to deuterated compounds according to Formula I-A, Formula II-A, Formula II-D, and Formula III-A. These compounds can be used as PET imaging agents for evaluating Parkinson's Disease, Alzheimer Disease, and for determining specific serotonin reuptake inhibitor (SSRIi) activity for treatment of depression. The present invention also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I-A, Formulae II-A, Formula II-D, or Formula III-A, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 11, 2021
    Inventors: Zehui WU, Zhihao ZHA, Futao LIU, Karl PLOESSL, Seok Rye CHOI, Hank F. KUNG
  • Patent number: 11071794
    Abstract: The present invention relates to deuterated compounds according to Formula I-A, Formula II-A, Formula II-D, and Formula III-A. These compounds can be used as PET imaging agents for evaluating Parkinson's Disease, Alzheimer Disease, and for determining specific serotonin reuptake inhibitor (SSRIi) activity for treatment of depression. The present invention also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I-A, Formulae II-A, Formula II-D, or Formula III-A, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: July 27, 2021
    Assignee: Five Eleven Pharma Inc.
    Inventors: Zehui Wu, Zhihao Zha, Futao Liu, Karl Ploessl, Seok Rye Choi, Hank F. Kung
  • Patent number: 10912849
    Abstract: The present invention relates to deuterated compounds according to Formula I-A, Formula II-A, Formula II-D, and Formula III-A. These compounds can be used as PET imaging agents for evaluating Parkinson's Disease, Alzheimer Disease, and for determining specific serotonin reuptake inhibitor (SSRIi) activity for treatment of depression. The present invention also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I-A, Formulae II-A, Formula II-D, or Formula III-A, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 9, 2021
    Assignee: FIVE ELEVEN PHARMA INC.
    Inventors: Zehui Wu, Zhihao Zha, Futao Liu, Karl Ploessl, Seok Rye Choi, Hank F. Kung
  • Publication number: 20200230263
    Abstract: The present invention relates to deuterated compounds according to Formula I-A, Formula II-A, Formula II-D, and Formula III-A. These compounds can be used as PET imaging agents for evaluating Parkinson's Disease, Alzheimer Disease, and for determining specific serotonin reuptake inhibitor (SSRIi) activity for treatment of depression. The present invention also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I-A, Formulae II-A, Formula II-D, or Formula III-A, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 23, 2020
    Applicant: Five Eleven Pharma Inc.
    Inventors: Zehui WU, Zhihao ZHA, Futao LIU, Karl PLOESSL, Seok Rye CHOI, Hank F. KUNG
  • Patent number: 10688200
    Abstract: The present invention relates to compounds according to Formula I and Formula IV. These compounds display very good binding affinities to the PSMA binding sites. They can be labeled with [68Ga]GaCl3 with high yields and excellent radiochemical purity. The present invention also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I or Formula IV, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: June 23, 2020
    Assignee: FIVE ELEVEN PHARMA INC.
    Inventors: Hank F. Kung, Karl Ploessl, Seok Rye Choi, Zhihao Zha, Zehui Wu
  • Patent number: 10253052
    Abstract: The present invention relates to compounds according to Formula I or Formula II, which are potential bone imaging agents. Certain compounds labeled with 68Ga displayed excellent bone uptake and retention. The present invention also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I or Formula II or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: April 9, 2019
    Assignee: Five Eleven Pharma Inc.
    Inventors: Hank F. Kung, Zehui Wu, Seok Rye Choi, Karl Plössl, Zhihao Zha
  • Publication number: 20180344882
    Abstract: The present invention relates to deuterated compounds according to Formula I-A, Formula II-A, Formula II-D, and Formula III-A. These compounds can be used as PET imaging agents for evaluating Parkinson's Disease, Alzheimer Disease, and for determining specific serotonin reuptake inhibitor (SSRIi) activity for treatment of depression. The present invention also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I-A, Formulae II-A, Formula II-D, or Formula III-A, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 6, 2018
    Inventors: Zehui WU, Zhihao ZHA, Futao LIU, Karl PLOESSL, Seok Rye CHOI, Hank F. KUNG
  • Publication number: 20170189568
    Abstract: The present invention relates to compounds according to Formula I and Formula IV. These compounds display very good binding affinities to the PSMA binding sites. They can be labeled with [68Ga]GaCl3 with high yields and excellent radiochemical purity. The present invention also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I or Formula IV, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 20, 2016
    Publication date: July 6, 2017
    Inventors: Hank F. KUNG, Karl PLOESSL, Seok Rye CHOI, Zhihao ZHA, Zehui WU
  • Publication number: 20170022224
    Abstract: The present invention relates to compounds according to Formula I or Formula II, which are potential bone imaging agents. Certain compounds labeled with 68Ga displayed excellent bone uptake and retention. The present invention also relates to pharmaceutical compositions comprising a pharmaceutical acceptable carrier and a compound of Formula I or Formula II or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 26, 2017
    Applicant: Five Eleven Pharma Inc.
    Inventors: Hank F. KUNG, Zehui Wu, Seok Rye Choi, Karl PLÖSSL, Zhihao Zha
  • Patent number: 8747809
    Abstract: The present invention is directed single diasteromers of 4-fluoroglutamine having a diastereomeric excess of at least 80%. Methods of preparing the single diastereomers are also described, as well as methods of using the single diastereomers of radiolabeled 4-fluoroglutamine as imaging agent is also described.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: June 10, 2014
    Assignee: The Trustees Of The University Of Pennsylvania
    Inventors: Hank F. Kung, Craig B. Thompson, Wenchao Qu, Karl Ploessl
  • Publication number: 20120288444
    Abstract: The present invention is directed single diasteromers of 4-fluoroglutamine having a diastereomeric excess of at least 80%. Methods of preparing the single diastereomers are also described, as well as methods of using the single diastereomers of radiolabeled 4-fluoroglutamine as imaging agent is also described.
    Type: Application
    Filed: August 13, 2010
    Publication date: November 15, 2012
    Applicant: THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
    Inventors: Hank F. Kung, Craig B. Thompson, Wenchao Qu, Karl Ploessl