Patents by Inventor Charles C. Nguyen

Charles C. Nguyen 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).

  • Methods for making ultrasound contrast agents
    Patent number: 11925695
    Abstract: Provided herein are improved methods for preparing phospholipid formulations including phospholipid UCA formulations.
    Type: Grant
    Filed: May 22, 2023
    Date of Patent: March 12, 2024
    Assignee: Lantheus Medical Imaging, Inc.
    Inventors: Simon P. Robinson, Robert W. Siegler, Nhung Tuyet Nguyen, David C. Onthank, Tarakeshwar Vishwanath Anklekar, Charles Chester Van Kirk
  • Reinforced films made from water soluble polymers
    Patent number: 5667885
    Abstract: A dried film reinforced with coalescable water insoluble polymer particles which are substantially noncoalesced is disclosed. Also disclosed are dried films reinforced with noncoalesced water insoluble polymer particles which are readily water dispersible. Also disclosed are stable aqueous dispersions for formation of such films which comprise (a) a water insoluble component comprising coalescable polymer particles which have a T.sub.g less than 55.degree. C. and a majority of which have a particle size of less than 1 micron; and (b) a water soluble component which comprises a water soluble polymer capable of inhibiting coalescence of the polymer particles, or a water soluble polymer and a component capable of inhibiting coalescence of the polymer particles.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: September 16, 1997
    Assignee: Penford Products Company
    Inventors: Charles C. Nguyen, Verne J. Martin, Edward P. Pauley, Henry L. Buccigross, Stephen Rudolph
  • Reinforced films made from water soluble polymers
    Patent number: 5565509
    Abstract: A dried film reinforced with coalescable water insoluble polymer particles which are substantially noncoalesced is disclosed. Also disclosed are dried films reinforced with noncoalesced water insoluble polymer particles which are readily water dispersible. Also disclosed are stable aqueous dispersions for formation of such films which comprise (a) a water insoluble component comprising coalescable polymer particles which have a T.sub.g less than 55.degree. C. and a majority of which have a particle size of less than 1 micron; and (b) a water soluble component which comprises a water soluble polymer capable of inhibiting coalescence of the polymer particles, or a water soluble polymer and a component capable of inhibiting coalescence of the polymer particles.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: October 15, 1996
    Assignee: Penford Products Company
    Inventors: Charles C. Nguyen, Verne J. Martin, Edward P. Pauley
  • Cationic starch/vinyl acetate containing board coating binders
    Patent number: 5536764
    Abstract: Board coating compositions are provided comprising a cationic starch and a vinyl acetate polymerization product as protein binder substitutes.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: July 16, 1996
    Assignee: Penford Products Company
    Inventors: Charles C. Nguyen, D. Eric Tupper
  • Reinforced films made from water soluble polymers
    Patent number: 5527544
    Abstract: A dried film reinforced with coalescable water insoluble polymer particles which are substantially noncoalesced is disclosed. Also disclosed are dried films reinforced with noncoalesced water insoluble polymer particles which are readily water dispersible. Also disclosed are stable aqueous dispersions for formation of such films which comprise (a) a water insoluble component comprising coalescable polymer particles which have a T.sub.g less than 55.degree. C. and a majority of which have a particle size of less than 1 micron; and (b) a water soluble component which comprises a water soluble polymer capable of inhibiting coalescence of the polymer particles, or a water soluble polymer and a component capable of inhibiting coalescence of the polymer particles.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: June 18, 1996
    Assignee: Penford Products Company
    Inventors: Charles C. Nguyen, Verne J. Martin, Edward P. Pauley, Henry L. Buccigross, Stephen Rudolph
  • Reinforced films made from water soluble polymers
    Patent number: 5416181
    Abstract: A dried film reinforced with coalescable water insoluble polymer particles which are substantially noncoalesced is disclosed. Also disclosed are dried films reinforced with noncoalesced water insoluble polymer particles which are readily water dispersible. Also disclosed are stable aqueous dispersions for formation of such films which comprise (a) a water insoluble component comprising coalescable polymer particles which have a T.sub.g less than 55.degree. C. and a majority of which have a particle size of less than 1 micron; and (b) a water soluble component which comprises a water soluble polymer capable of inhibiting coalescence of the polymer particles, or a water soluble polymer and a component capable of inhibiting coalescence of the polymer particles.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: May 16, 1995
    Assignee: Penford Products Company
    Inventors: Charles C. Nguyen, Verne J. Martin, Edward P. Pauley, Henry L. Buccigross, Stephen Rudolph
  • Starch graft polymers
    Patent number: 5130394
    Abstract: A stable aqueous polymeric dispersion comprising a graft copolymer of thinned, gelatinized starch and one or more vinyl grafting monomers, the vinyl monomers including at least 10% by weight 1,3-butadiene is disclosed. Also disclosed are paper coating color compositions comprising the polymeric dispersions and pigments and improved high gloss papers coated with the coating color compositions.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: July 14, 1992
    Assignee: Penford Products Company
    Inventors: Charles C. Nguyen, Verne J. Martin, Edward P. Pauley
  • Salt stable starch graft polymers
    Patent number: 5130395
    Abstract: An aqueous, salt stable polymeric dispersion comprising the reaction product of a thinned, gelatinized starch and one or more vinyl monomers, said monomer(s) comprising at least 10% 1,3-butadiene by weight is disclosed.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: July 14, 1992
    Assignee: Penford Products Company
    Inventors: Charles C. Nguyen, Verne J. Martin, Gary R. Luebke, Edward P. Pauley, Duane E. Tupper
  • Starch graft polymers
    Patent number: 5003022
    Abstract: A stable aqueous polymeric dispersion comprising a graft copolymer of thinned, gelatinized starch and one or more vinyl grafting monomers, the vinyl monomers including at least 10% by weight 1,3-butadiene is disclosed. Also disclosed are paper coating color compositions comprising the polymeric dispersions and pigments and improved high gloss papers coated with the coating color compositions.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: March 26, 1991
    Assignee: Penford Products Company
    Inventors: Charles C. Nguyen, Verne J. Martin, Edward P. Pauley