Patents by Inventor Chee-Youb Won

Chee-Youb Won 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: 20180235903
    Abstract: Described is a transdermal device comprising a backing layer; an adhesive matrix comprising fentanyl as an active agent suspended on a plurality of pressure sensitive adhesives along with a cross-linked moisture absorbent comprising cross-linked polyvinylpyrrolidone; and a release layer. Also described is a method of relieving pain, which comprising applying said transdermal device to the skin of a patient in need thereof.
    Type: Application
    Filed: March 11, 2016
    Publication date: August 23, 2018
    Inventors: Jay Audett, Chee Youb Won
  • Patent number: 8524215
    Abstract: An absorbable PEG-based hydrogel prepared from a multi-arm-PEG-vinylsulfone having about 3 to about 8 arms and a multi-arm-PEG-R-sulfhydryl having about 3 to about 8 arms; where R is defined as an ester linkage, such as carboxylate ester, lactate ester, and isobutyrate ester have been disclosed. Additionally, sustained release compositions that are prepared from an absorbable PEG-based hydrogel and a protein have been disclosed which provide sustained release of proteins and peptides.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: September 3, 2013
    Assignee: Janssen Biotech, Inc.
    Inventors: Chee-Youb Won, Helen Cui
  • Publication number: 20120027775
    Abstract: An absorbable PEG-based hydrogel prepared from a multi-arm-PEG-vinylsulfone having about 3 to about 8 arms and a multi-arm-PEG-R-sulfhydryl having about 3 to about 8 arms; where R is defined as an ester linkage, such as carboxylate ester, lactate ester, and isobutyrate ester have been disclosed. Additionally, sustained release compositions that are prepared from an absorbable PEG-based hydrogel and a protein have been disclosed which provide sustained release of proteins and peptides.
    Type: Application
    Filed: July 29, 2011
    Publication date: February 2, 2012
    Applicant: Advanced Technologies and Regenerative Medicine, LLC
    Inventors: Chee-Youb Won, Helen Cui
  • Patent number: 7504477
    Abstract: A new class of activated polyalkylene glycol acids and their active ester reagents for conjugation to biopharmaceuticals such as polypeptides, sugars, proteins and therapeutically active small molecules to produce biologically active conjugates of these pharmaceuticals and methods for producing these conjugates.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: March 17, 2009
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Chee-Youb Won
  • Patent number: 7273909
    Abstract: Polyethylene glycol aldehyde compounds are provided. Methods of making and using such compounds, as well as chemical intermediates are also provided.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: September 25, 2007
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Chee-Youb Won
  • Publication number: 20070167606
    Abstract: Polyethylene glycol aldehyde compounds are provided. Methods of making and using such compounds, as well as chemical intermediates are also provided.
    Type: Application
    Filed: March 14, 2007
    Publication date: July 19, 2007
    Inventor: Chee-Youb Won
  • Patent number: 7193031
    Abstract: A new class of activated polyalkylene glycol acids and their active ester reagents for conjugation to biopharmaceuticals such as polypeptides, sugars, proteins and therapeutically active small molecules to produce biologically active conjugates of these pharmaceuticals and methods for producing these conjugates.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: March 20, 2007
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Pascal Sebastian Bailon, Chee-Youb Won
  • Patent number: 7138132
    Abstract: A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by free radical polymerization to form a hydrogel containing a three dimensional crosslinked polymer network containing hydrophobic and hydrophilic components. Agent can be entrapped in the polymer network, e.g., drugs, macromolecules or synthetic or natural polymers, for controlled release therefrom. In one embodiment, a vascular stent is coated with hydrogel with therapeutic agent entrapped therein.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: November 21, 2006
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Chee-Youb Won, Yeli Zhang, Chih-Chang Chu
  • Patent number: 7084261
    Abstract: Pegylated T1249 polypeptide compounds are provided. Also provided are pharmaceutical compositions containing pegylated T1249 polypeptide compounds, and methods of making. Further provided are methods of inhibiting HIV infection using such compounds and compositions.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: August 1, 2006
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Pascal S. Bailon, Chee-Youb Won
  • Publication number: 20060167218
    Abstract: A new class of activated polyalkylene glycol acids and their active ester reagents for conjugation to biopharmaceuticals such as polypeptides, sugars, proteins and therapeutically active small molecules to produce biologically active conjugates of these pharmaceuticals and methods for producing these conjugates.
    Type: Application
    Filed: March 22, 2006
    Publication date: July 27, 2006
    Inventor: Chee-Youb Won
  • Patent number: 7049415
    Abstract: Pegylated T20 polypeptide compounds are provided. Also provided are pharmaceutical compositions containing pegylated T20 polypeptide compounds, and methods of making and using such compounds and compositions.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: May 23, 2006
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Pascal Sebastian Bailon, Chee-Youb Won
  • Patent number: 6916857
    Abstract: A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide (e.g. dextran) containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by free radical polymerization to form a hydrogel containing a three dimensional crosslinked polymer network containing hydrophobic and hydrophilic components. Agent can be entrapped in the polymer network, e.g., drugs, macromolecules or synthetic or natural polymers, for controlled release therefrom.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: July 12, 2005
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Chee-Youb Won, Yeli Zhang, Chih-Chang Chu
  • Publication number: 20050129734
    Abstract: A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by free radical polymerization to form a hydrogel containing a three dimensional crosslinked polymer network containing hydrophobic and hydrophilic components. Agent can be entrapped in the polymer network, e.g., drugs, macromolecules or synthetic or natural polymers, for controlled release therefrom. In one embodiment, a vascular stent is coated with hydrogel with therapeutic agent entrapped therein.
    Type: Application
    Filed: January 19, 2005
    Publication date: June 16, 2005
    Applicant: Cornell Research Foundation, Inc.
    Inventors: Chee-Youb Won, Yeli Zhang, Chih-Chang Chu
  • Patent number: 6905700
    Abstract: A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by free radical polymerization to form a hydrogel containing a three dimensional crosslinked polymer network containing hydrophobic and hydrophilic components. Agent can be entrapped in the polymer network, e.g., drugs, macromolecules or synthetic or natural polymers, for controlled release therefrom. In one embodiment, a vascular stent is coated with hydrogel with therapeutic agent entrapped therein.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: June 14, 2005
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Chee-Youb Won, Yeli Zhang, Chih-Chang Chu
  • Publication number: 20040171542
    Abstract: Pegylated T1249 polypeptide compounds are provided. Also provided are pharmaceutical compositions containing pegylated T1249 polypeptide compounds, and methods of making. Further provided are methods of inhibiting HIV infection using such compounds and compositions.
    Type: Application
    Filed: July 22, 2003
    Publication date: September 2, 2004
    Inventors: Pascal Sebastian Bailon, Chee-Youb Won
  • Publication number: 20040151752
    Abstract: A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by free radical polymerization to form a hydrogel containing a three dimensional crosslinked polymer network containing hydrophobic and hydrophilic components. Agent can be entrapped in the polymer network, e.g., drugs, macromolecules or synthetic or natural polymers, for controlled release therefrom. In one embodiment, a vascular stent is coated with hydrogel with therapeutic agent entrapped therein.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventors: Chee-Youb Won, Yeli Zhang, Chih-Chang Chu
  • Publication number: 20040122165
    Abstract: A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide (e.g., dextran) containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by free radical polymerization to form a hydrogel containing a three dimensional crosslinked polymer network containing hydrophobic and hydrophilic components. Preferably, the hydrophobic polymer is prepared by reacting diol obtained by converting hydroxy of terminal carboxylic acid group of poly(lactic acid) to aminoethanol group and reacting the hydroxyls of the diol with an unsaturated group introducing compound which is acryloyl chloride or isocyanate having an unsaturated group at one end of the molecule.
    Type: Application
    Filed: December 12, 2003
    Publication date: June 24, 2004
    Inventors: Chee-Youb Won, Yeli Zhang, Chih-Chang Chu
  • Publication number: 20040106747
    Abstract: A new class of activated polyalkylene glycol acids and their active ester reagents for conjugation to biopharmaceuticals such as polypeptides, sugars, proteins and therapeutically active small molecules to produce biologically active conjugates of these pharmaceuticals and methods for producing these conjugates.
    Type: Application
    Filed: July 22, 2003
    Publication date: June 3, 2004
    Inventors: Pascal Sebastian Bailon, Chee-Youb Won
  • Patent number: 6716445
    Abstract: A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by free radical polymerization to form a hydrogel containing a three dimensional crosslinked polymer network containing hydrophobic and hydrophilic components. Agent can be entrapped in the polymer network, e.g., drugs, macromolecules or synthetic or natural polymers, for controlled release therefrom. In one embodiment, a vascular stent is coated with hydrogel with therapeutic agent entrapped therein.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: April 6, 2004
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Chee-Youb Won, Yeli Zhang, Chih-Chang Chu
  • Patent number: 6709668
    Abstract: A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide (e.g., dextran) containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by free radical polymerization to form a hydrogel containing a three dimensional crosslinked polymer network containing hydrophobic and hydrophilic components. Agent can be entrapped in the polymer network, e.g., drugs, macromolecules or synthetic or natural polymers, for controlled release therefrom.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: March 23, 2004
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Chee-Youb Won, Yeli Zhang, Chih-Chang Chu