Patents by Inventor Michael L. Heien

Michael L. Heien 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: 20230104480
    Abstract: Methods for quality control and optimizing the formation and characterization of micelles, vesicles or other aggregates are described herein. Pharmaceutically relevant peptides may be modified to form glycopeptide surfactants which form micelles or other aggregates with another surfactant. Glycopeptide and glycolipid surfactants can aggregate to form particles that enhance drug delivery. The glycopeptide surfactants may be drugs or prodrugs which are delivered via the micelles or other aggregated structures.
    Type: Application
    Filed: November 21, 2022
    Publication date: April 6, 2023
    Inventors: Robin L. Polt, Dillon Hanrahan, Lajos Z. Szabo, Michael L. Heien, Chenxi Liu
  • Patent number: 11536691
    Abstract: A low-cost, portable potentiostat capable of performing several different electrochemical experiments (e.g. cyclic voltammetry and anodic stripping voltammetry) was designed. The potentiostat runs on one or more batteries and has a battery life of over two weeks. Further, the potentiostat of the present invention is capable of self-calibrating and has a linear dynamic range spanning several orders of magnitude. It is also capable of saving data onto an onboard data storage card and is able to export the data to a computer for additional analysis. The potentiostat requires no peripheral hardware and is suitable for use by those with even minimal training in electrochemistry.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: December 27, 2022
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventors: Michael L. Heien, Drew Farrell
  • Publication number: 20220380431
    Abstract: Glycopeptide analogs of secretin family peptides, including PACAP and VIP, are described herein. These glycopeptides analogs can have neuroprotective properties and enhanced ability to cross the blood brain barrier (BBB) and/or enhanced stability. These glycosylated peptides can be used as drugs for treatment of CNS disorders, such as Parkinson's disease.
    Type: Application
    Filed: August 9, 2018
    Publication date: December 1, 2022
    Inventors: Robin L. Polt, Christopher Apostol, Michael L. Heien, Chenxi Liu, John M. Streicher, Lajos Z. Szabo, Torsten Falk
  • Patent number: 11504325
    Abstract: Methods for quality control and optimizing the formation and characterization of micelles, vesicles or other aggregates are described herein. Pharmaceutically relevant peptides may be modified to form glycopeptide surfactants which form micelles or other aggregates with another surfactant. Glycopeptide and glycolipid surfactants can aggregate to form particles that enhance drug delivery. The glycopeptide surfactants may be drugs or pro-drugs which are delivered via the micelles or other aggregated structures.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: November 22, 2022
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventors: Robin L. Polt, Dillon Hanrahan, Lajos Z. Szabo, Michael L. Heien, Chenxi Liu
  • Publication number: 20210361572
    Abstract: Methods for quality control and optimizing the formation and characterization of micelles, vesicles or other aggregates are described herein. Pharmaceutically relevant peptides may be modified to form glycopeptide surfactants which form micelles or other aggregates with another surfactant. Glycopeptide and glycolipid surfactants can aggregate to form particles that enhance drug delivery. The glycopeptide surfactants may be drugs or pro-drugs which are delivered via the micelles or other aggregated structures.
    Type: Application
    Filed: August 9, 2018
    Publication date: November 25, 2021
    Inventors: Robin L. Polt, Dillon Hanrahan, Lajos Z. Szabo, Michael L. Heien, Chenxi Liu
  • Patent number: 10874334
    Abstract: Methods and systems for quantifying blood brain barrier (BBB) permeation of glycosylated peptides. The methods and systems feature microdialysis probes and mechanisms for infusing preservative agents into the outflow tubes of the microdialysis probes. The preservative agents help reduce unwanted degradation of the glycosylated peptides or other compounds, which can lead to a more accurate and complete analysis of the outflow tube perfusate.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: December 29, 2020
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventors: Michael L. Heien, Nicholas D. Laude, Catherine L. Kramer
  • Patent number: 10858410
    Abstract: Glycosylated peptides with glycosylation at or near the C-terminal domain of the peptide have an enhanced ability to cross the blood brain barrier (BBB) and/or enhanced half-lives. These glycosylated peptides may be used as drugs. For example, a PACAP peptide with a C-terminal glycosylation, e.g., in lieu of the terminal leucine, functions as a PAC1 agonist with enhanced ability to cross the BBB and with enhanced half-life. The peptides can have a pseudoproline residue with glycosylation at or near the C-terminal domain.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: December 8, 2020
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventors: Robin Polt, Evan M. Jones, Bobbi Anglin, Michael L. Heien, John M. Streicher
  • Publication number: 20200270318
    Abstract: Glycosylated peptides with glycosyiatiou at or near the C-terminal domain of the peptide have an enhanced ability to cross the blood brain barrier (BBB) and/or enhanced half-lives. These glycosylated peptides may be used as drugs. For example, a PACAP peptide with a C-terminal glycosylation, e.g., in lieu of the terminal leucine, functions as a PAC1 agonist with enhanced ability to cross the BBB and with enhanced half-life. The peptides can have a pseudoproline residue with glycosylation at or near the C-terminal domain.
    Type: Application
    Filed: August 12, 2016
    Publication date: August 27, 2020
    Inventors: Robin Polt, Evan M. Jones, Bobbi Anglin, Michael L. Heien, John M. Streicher
  • Publication number: 20190170687
    Abstract: A low-cost, portable potentiostat capable of performing several different electrochemical experiments (e.g. cyclic voltammetry and anodic stripping voltammetry) was designed. The potentiostat runs on one or more batteries and has a battery life of over two weeks. Further, the potentiostat of the present invention is capable of self-calibrating and has a linear dynamic range spanning several orders of magnitude. It is also capable of saving data onto an onboard data storage card and is able to export the data to a computer for additional analysis. The potentiostat requires no peripheral hardware and is suitable for use by those with even minimal training in electrochemistry.
    Type: Application
    Filed: August 7, 2017
    Publication date: June 6, 2019
    Inventors: Michael L. Heien, Drew Farrell
  • Publication number: 20190060399
    Abstract: The present invention provides glycopeptides comprising a peptide that is covalently linked to a saccharide. The peptide portion of the glycopeptides of the invention has from about 20 to about 40 amino acid residues and at least 75% sequence identity to SEQ ID NO:1, 2, or 3. The saccharide moiety portion of the glycopeptides of the present invention comprises from 1 to about 8 carbohydrates. The present invention also relates to using the glycopeptides of the invention in treating various neurodegenerative diseases.
    Type: Application
    Filed: November 5, 2018
    Publication date: February 28, 2019
    Inventors: Robin L. Polt, Torsten A E Falk, Michael L. Heien, John Streicher