Patents by Inventor Igor Jigaltsev
Igor Jigaltsev 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: 20180221279Abstract: Drag derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drag derivatized with a weak-base moiety that facilitates active loading of the drag through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drag to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drag derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drags.Type: ApplicationFiled: April 9, 2018Publication date: August 9, 2018Inventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Patent number: 9968554Abstract: Drag derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drag derivatized with a weak-base moiety that facilitates active loading of the drag through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drag to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drag derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drags.Type: GrantFiled: June 12, 2014Date of Patent: May 15, 2018Assignee: The University of British ColumbiaInventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Publication number: 20140356417Abstract: Drag derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drag derivatized with a weak-base moiety that facilitates active loading of the drag through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drag to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drag derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drags.Type: ApplicationFiled: June 12, 2014Publication date: December 4, 2014Inventors: Peter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Patent number: 8790691Abstract: Drag derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drag derivatized with a weak-base moiety that facilitates active loading of the drag through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drag to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drag derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drags.Type: GrantFiled: May 26, 2009Date of Patent: July 29, 2014Assignee: The University of British ColumbiaInventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Patent number: 8568772Abstract: Drug derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drug derivatized with a weak-base moiety that facilitates active loading of the drug through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drug to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drug derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drugs.Type: GrantFiled: April 19, 2013Date of Patent: October 29, 2013Assignee: The University of British ColumbiaInventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Mauer, Igor Jigaltsev
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Patent number: 8545877Abstract: Drug derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drug derivatized with a weak-base moiety that facilitates active loading of the drug through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drug to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drug derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drugs.Type: GrantFiled: April 19, 2013Date of Patent: October 1, 2013Assignee: University of British ColumbiaInventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Patent number: 8545876Abstract: Drug derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drug derivatized with a weak-base moiety that facilitates active loading of the drug through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drug to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drug derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drugs.Type: GrantFiled: April 19, 2013Date of Patent: October 1, 2013Assignee: University of British ColumbiaInventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Publication number: 20130236534Abstract: Drug derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drug derivatized with a weak-base moiety that facilitates active loading of the drug through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drug to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drug derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drugs.Type: ApplicationFiled: April 19, 2013Publication date: September 12, 2013Inventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Publication number: 20130230582Abstract: Drug derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drug derivatized with a weak-base moiety that facilitates active loading of the drug through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drug to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drug derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drugs.Type: ApplicationFiled: April 19, 2013Publication date: September 5, 2013Inventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Publication number: 20130230583Abstract: Drug derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drug derivatized with a weak-base moiety that facilitates active loading of the drug through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drug to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drug derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drugs.Type: ApplicationFiled: April 19, 2013Publication date: September 5, 2013Inventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Patent number: 8324410Abstract: Drug derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drug derivatized with a weak-base moiety that facilitates active loading of the drug through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drug to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drug derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drugs.Type: GrantFiled: May 8, 2012Date of Patent: December 4, 2012Assignee: The University of British ColumbiaInventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev
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Publication number: 20120237591Abstract: Drug derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drug derivatized with a weak-base moiety that facilitates active loading of the drug through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drug to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drug derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drugs.Type: ApplicationFiled: May 8, 2012Publication date: September 20, 2012Applicant: The University of British ColumbiaInventors: Pieter Cullis, Marcel Bally, Marco Ciufolini, Norbert Maurer, Igor Jigaltsev