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).
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Publication number: 20240247106Abstract: 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 toType: ApplicationFiled: July 26, 2023Publication date: July 25, 2024Applicant: POLYACTIVA PTY LTDInventors: 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
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Publication number: 20220401455Abstract: 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, carbonType: ApplicationFiled: September 19, 2019Publication date: December 22, 2022Applicant: POLYACTIVA PTY LTDInventors: 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
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Publication number: 20220226483Abstract: 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: ApplicationFiled: December 23, 2021Publication date: July 21, 2022Applicant: POLYACTIVA PTY LTDInventors: 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
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Publication number: 20200121798Abstract: 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: ApplicationFiled: March 14, 2018Publication date: April 23, 2020Applicant: POLYACTIVA PTY LTDInventors: 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
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Publication number: 20200123322Abstract: 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 toType: ApplicationFiled: March 14, 2018Publication date: April 23, 2020Applicant: POLYACTIVA PTY LTDInventors: 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
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Publication number: 20180303948Abstract: 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: ApplicationFiled: September 9, 2016Publication date: October 25, 2018Applicant: Polyactiva Pty LtdInventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sara Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE