Patents by Inventor David VALADE

David VALADE 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: 20240065990
    Abstract: The invention relates to methods, compounds, compositions and vehicles for delivering 3-amino-1-propanesulfonic acid (3APS) in a subject, preferably a human subject. The invention encompasses compounds that will yield or generate 3APS, either in vitro or in vivo. Preferred compounds include amino acid prodrugs of 3APS for use, including but not limited to, the prevention and treatment of Alzheimer's disease.
    Type: Application
    Filed: September 14, 2023
    Publication date: February 29, 2024
    Inventors: Xianqi KONG, Mohamed ATFANI, Benoit BACHAND, Abderrahim BOUZIDE, Stephanie CIBLAT, Sophie LEVESQUE, David MIGNEAULT, Isabelle VALADE, Xinfu WU, Daniel DELORME
  • Patent number: 11787906
    Abstract: A drug-polymer conjugate, which is a copolymer of at least one monomer of formula (I): (I) where: X may be the same or different at each occurrence and represents a terminal functional group comprising an alkyne or an azide; Q is independently selected at each occurrence and may be present or absent and when present, represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon, optionally substituted aryl and optionally substituted heteroaryl; D is a releasable drug selected from prostaglandins, ?-blockers and mixtures thereof; L is a linker group group; and at least one co-monomer of Formula III III J represents a linking functional group, n is 2 to 8, preferably 3 to 8; Y comprises a polyether of formula (ORa)m wherein Ra is independently ethylene, propylene and butylene and m is from 1 to 300 (preferably 2 to 300) and the polyether is in chain with one or more groups which are preferably selected from one or more of optionally substituted straight or branched C1 to
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: October 17, 2023
    Assignee: POLYACTIVA PTY LTD
    Inventors: Stephen Lonsdale Birkett, Andrew Craig Donohue, Asha Marina D'Souza, Sarah Man Yee Ng, Adrian Sulistio, Russell John Tait, David Valade, Alan Naylor, Jason Watling, Carmen Vittoria Scullino
  • Patent number: 11696955
    Abstract: A polymer-prostaglandin conjugate comprising: a polymer backbone comprising a plurality of moieties of formula (I): where: T represents a triazole moiety; Q is independently selected at each occurrence and may be present or absent and when present represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon; D is selected from prostaglandins; and L is a group of formula (II) wherein R5 is selected from hydrogen and C1 to C6 alkyl; (R) indicates the end of the group bonded to the R group; and (D) indicates the end of the group attached to the group D.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: July 11, 2023
    Assignee: POLYACTIVA PTY LTD
    Inventors: Stephen Lonsdale Birkett, Andrew Craig Donohue, Asha Marina D'Souza, Sarah Man Yee Ng, Adrian Sulistio, Russell John Tait, David Valade, Alan Naylor, Jason Watling
  • Publication number: 20220401455
    Abstract: A drug-polymer conjugate, which is a copolymer of at least one monomer of formula (I) where: X may be the same or different at each occurrence and represents a terminal functional group comprising an alkyne or an azide; Q is independently selected at each occurrence and may be present or absent and when present, represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon, optionally substituted aryl and optionally substituted heteroaryl; D is a releasable bicyclic prostaglandin; L is a linker group; and at least one co-monomer of Formula III J-(Y1-A)n, J represents a linking functional group, n is 2 to 8 preferably 3 to 8; Y1 comprises a polyether of formula (ORa)m wherein Ra is independently ethylene, propylene and butylene and m is from 1 to 300 (preferably 2 to 300) and the polyether is in chain with one or more groups which are preferably selected from one or more of optionally substituted straight or branched C1 to C10 alkylene, amino, ether, ester, amide, carbon
    Type: Application
    Filed: September 19, 2019
    Publication date: December 22, 2022
    Applicant: POLYACTIVA PTY LTD
    Inventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sarah Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE, Alan NAYLOR, Jason WATLING, Carmen Vittoria SCULLINO
  • Publication number: 20220226483
    Abstract: A polymer-prostaglandin conjugate comprising: a polymer backbone comprising a plurality of moieties of formula (I): where: T represents a triazole moiety; Q is independently selected at each occurrence and may be present or absent and when present represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon; D is selected from prostaglandins; and L is a group of formula (II) wherein R5 is selected from hydrogen and C1 to C6 alkyl; (R) indicates the end of the group bonded to the R group; and (D) indicates the end of the group attached to the group D.
    Type: Application
    Filed: December 23, 2021
    Publication date: July 21, 2022
    Applicant: POLYACTIVA PTY LTD
    Inventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sarah Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE, Alan NAYLOR, Jason WATLING
  • Patent number: 11207417
    Abstract: A polymer-prostaglandin conjugate comprising: a polymer backbone comprising a plurality of moieties of formula (I): where: T represents a triazole moiety; Q is independently selected at each occurrence and may be present or absent and when present represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon; D is selected from prostaglandins; and L is a group of formula (II) wherein R5 is selected from hydrogen and C1 to C6 alkyl; (R) indicates the end of the group bonded to the R group; and (D) indicates the end of the group attached to the group D.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 28, 2021
    Assignee: POLYACTIVA PTY LTD
    Inventors: Stephen Lonsdale Birkett, Andrew Craig Donohue, Asha Marina D'Souza, Sarah Man Yee Ng, Adrian Sulistio, Russell John Tait, David Valade, Alan Naylor, Jason Watling
  • Patent number: 10758626
    Abstract: The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety selected from quinolones, NSAIDs and mixtures thereof. The present invention also relates to methods for preparing the polymer conjugates using click cycloaddition chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the post-surgical care to treat or prevent infections, provide analgesia and treat inflammation.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: September 1, 2020
    Assignee: POLYACTIVA PTY LTD
    Inventors: Stephen Lonsdale Birkett, Andrew Craig Donohue, Asha Marina D'Souza, Sarah Man Yee Ng, Adrian Sulistio, Russell John Tait, David Valade, Alan Naylor, Anton Blencowe
  • Publication number: 20200123322
    Abstract: A drug-polymer conjugate, which is a copolymer of at least one monomer of formula (I): (I) where: X may be the same or different at each occurrence and represents a terminal functional group comprising an alkyne or an azide; Q is independently selected at each occurrence and may be present or absent and when present, represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon, optionally substituted aryl and optionally substituted heteroaryl; D is a releasable drug selected from prostaglandins, ?-blockers and mixtures thereof; L is a linker group group; and at least one co-monomer of Formula III III J represents a linking functional group, n is 2 to 8, preferably 3 to 8; Y comprises a polyether of formula (ORa)m wherein Ra is independently ethylene, propylene and butylene and m is from 1 to 300 (preferably 2 to 300) and the polyether is in chain with one or more groups which are preferably selected from one or more of optionally substituted straight or branched Ci to
    Type: Application
    Filed: March 14, 2018
    Publication date: April 23, 2020
    Applicant: POLYACTIVA PTY LTD
    Inventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sara Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE, Alan NAYLOR, Jason WATLING, Carmen Vittoria SCULLINO
  • Publication number: 20200121798
    Abstract: A polymer-prostaglandin conjugate comprising: a polymer backbone comprising a plurality of moieties of formula (I): where: T represents a triazole moiety; Q is independently selected at each occurrence and may be present or absent and when present represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon; D is selected from prostaglandins; and L is a group of formula (II) wherein R5 is selected from hydrogen and C1 to C6 alkyl; (R) indicates the end of the group bonded to the R group; and (D) indicates the end of the group attached to the group D.
    Type: Application
    Filed: March 14, 2018
    Publication date: April 23, 2020
    Applicant: POLYACTIVA PTY LTD
    Inventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sara Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE, Alan NAYLOR, Jason WATLING
  • Publication number: 20180303948
    Abstract: The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety selected from quinolones, NSAIDs and mixtures thereof. The present invention also relates to methods for preparing the polymer conjugates using click cycloaddition chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the post-surgical care to treat or prevent infections, provide analgesia and treat inflammation.
    Type: Application
    Filed: September 9, 2016
    Publication date: October 25, 2018
    Applicant: Polyactiva Pty Ltd
    Inventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sara Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE