Patents by Inventor Pieter Leyssen

Pieter Leyssen 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: 20230233543
    Abstract: The present invention relates to compounds that are able to inhibt functional proteins of COVID-19 virus, SARS-Cov-2.
    Type: Application
    Filed: May 6, 2021
    Publication date: July 27, 2023
    Inventors: Andrea Rosario BECCARI, Candida MANELFI, Carmine TALARICO, Andrea ZALIANI, Gerd GEISSLINGER, Philip GRIBBON, Pieter LEYSSEN
  • Patent number: 9730944
    Abstract: The present invention relates to compound of Formula I, II, III, or IV, and/or a pharmaceutical acceptable addition salt thereof and/or a stereoisomer thereof and/or a solvate thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, and R12 are as defined in the claim 1 or as described in detail in the description of the invention, and to the use of said compounds to treat or prevent viral infections and their use to manufacture a medicine to treat or prevent viral infections, particularly infections with RNA-viruses belonging to the family of the Retroviridae, the family of the Flaviviridae and the family of the Picornaviridae and more preferably infections with Human Immunodeficiency Virus 1 (HIV1), Human Immunodeficiency Virus 2 (HIV2), Hepatitis C virus (HCV), Dengue virus, and enteroviruses like Coxsackievirus, Rhinovirus and Poliovirus.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: August 15, 2017
    Assignee: Katholieke Universiteit Leuven, K.U. Leuven R&D
    Inventors: Steven De Jonghe, Ling-Jie Gao, Piet Herdewijn, Jean Herman, Miyeon Jang, Pieter Leyssen, Thierry Louat, Johan Neyts, Christophe Pannecouque, Bart Vanderhoydonck
  • Publication number: 20160030447
    Abstract: The present invention relates to compound of Formula I, II, III, or IV, and/or a pharmaceutical acceptable addition salt thereof and/or a stereoisomer thereof and/or a solvate thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, and R12 are as defined in the claim 1 or as described in detail in the description of the invention, and to the use of said compounds to treat or prevent viral infections and their use to manufacture a medicine to treat or prevent viral infections, particularly infections with RNA-viruses belonging to the family of the Retroviridae, the family of the Flaviviridae and the family of the Picornaviridae and more preferably infections with Human Immunodeficiency Virus 1 (HIV1), Human Immunodeficiency Virus 2 (HN2), Hepatitis C virus (HCV), Dengue virus, and enteroviruses like Coxsackievirus, Rhinovirus and Poliovirus. The present invention also relates to pharmaceutical compositions of said compounds and the use of said pharmaceutical compositions to treat or prevent viral infections.
    Type: Application
    Filed: October 16, 2015
    Publication date: February 4, 2016
    Applicant: KATHOLIEKE UNIVERSITEIT LEUVEN, K.U.LEUVEN R&D
    Inventors: Steven De Jonghe, Ling-Jie Gao, Piet Herdewijn, Jean Herman, Miyeon Jang, Pieter Leyssen, Thierry Louat, Johan Neyts, Christophe Pannecouque, Bart Vanderhoydonck
  • Patent number: 9193741
    Abstract: The present invention relates to compound of Formula I, II, III, or IV, and/or a pharmaceutical acceptable addition salt thereof and/or a stereoisomer thereof and/or a solvate thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, and R12 are as defined in the claim 1 or as described in detail in the description of the invention, and to the use of said compounds to treat or prevent viral infections and their use to manufacture a medicine to treat or prevent viral infections, particularly infections with RNA-viruses belonging to the family of the Retroviridae, the family of the Flaviviridae and the family of the Picornaviridae and more preferably infections with Human Immunodeficiency Virus 1 (HIV1), Human Immunodeficiency Virus 2 (HIV2), Hepatitis C virus (HCV), Dengue virus, and enteroviruses like Coxsackievirus, Rhinovirus and Poliovirus.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: November 24, 2015
    Assignee: Katholieke Universiteit Leuven, K. U. Leuven R&D
    Inventors: Steven De Jonghe, Ling-Jie Gao, Piet Herdewijn, Jean Herman, Miyeon Jang, Pieter Leyssen, Thierry Louat, Johan Neyts, Christophe Pannecouque, Bart Vanderhoydonck
  • Publication number: 20150030563
    Abstract: The present invention relates to the treatment, alleviation, prevention or reduction in the incidence of symptoms, diseases or conditions resulting from or associated with enteroviruses, more particularly the enteroviral infections they cause.
    Type: Application
    Filed: August 5, 2014
    Publication date: January 29, 2015
    Inventors: Johan NEYTS, Armando De Palma, Hendrik Jan Thibaut, Pieter Leyssen, Simon Tucker
  • Patent number: 8796273
    Abstract: The present invention relates to the treatment, alleviation, prevention or reduction in the incidence of symptoms, diseases or conditions resulting from or associated with enteroviruses, more particularly the enteroviral infections they cause.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: August 5, 2014
    Assignee: Biota Scientific Management Pty Ltd
    Inventors: Johan Neyts, Armando De Palma, Hendrik Jan Thibaut, Pieter Leyssen, Simon Tucker
  • Publication number: 20130190297
    Abstract: The present invention relates to compound of Formula I, II, III, or IV, and/or a pharmaceutical acceptable addition salt thereof and/or a stereoisomer thereof and/or a solvate thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, and R12 are as defined in the claim 1 or as described in detail in the description of the invention, and to the use of said compounds to treat or prevent viral infections and their use to manufacture a medicine to treat or prevent viral infections, particularly infections with RNA-viruses belonging to the family of the Retroviridae, the family of the Flaviviridae and the family of the Picornaviridae and more preferably infections with Human Immunodeficiency Virus 1 (HIV1), Human Immunodeficiency Virus 2 (HIV2), Hepatitis C virus (HCV), Dengue virus, and enteroviruses like Coxsackievirus, Rhinovirus and Poliovirus.
    Type: Application
    Filed: May 20, 2011
    Publication date: July 25, 2013
    Applicant: KATHOLIEKE UNIVERSITEIT LEUVEN, K.U.LEUVEN R&D
    Inventors: Steven De Jonghe, Ling-Jie Gao, Piet Herdewijn, Jean Herman, Miyeon Jang, Pieter Leyssen, Thierry Louat, Johan Neyts, Christophe Pannecouque, Bart Vanderhoydonck
  • Publication number: 20120022073
    Abstract: The present invention relates to the treatment, alleviation, prevention or reduction in the incidence of symptoms, diseases or conditions resulting from or associated with enteroviruses, more particularly the enteroviral infections they cause.
    Type: Application
    Filed: June 24, 2011
    Publication date: January 26, 2012
    Applicant: BIOTA SCIENTIFIC MANAGEMENT PTY LTD
    Inventors: Johan Neyts, Armando De Palma, Hendrik Jan Thibaut, Pieter Leyssen, Simon Tucker
  • Publication number: 20110224208
    Abstract: The present invention relates to a series of Isoquinolone derivatives which are suitable to treat infections with viruses belonging to the family of the Flaviviridae and more preferably infections with Hepatitis C virus (HCV). The present invention also relates to Isoquinolone compounds for use as a medicine for the prevention or treatment of viral infections, preferably infections with viruses belonging to the family of the Flaviviridae.
    Type: Application
    Filed: November 16, 2009
    Publication date: September 15, 2011
    Applicant: KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D
    Inventors: Dorothée Bardiot, Emilie Blanche, Patrick Chaltin, Mohamed Koukni, Pieter Leyssen, Johan Neyts, Arnaud Marchand, Inge Vliegen