Patents by Inventor Charles Pak

Charles Pak 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).

  • Interlocking device for aircraft cockpit frames
    Patent number: 10577075
    Abstract: An apparatus for connecting a windscreen and a canopy to an aircraft is provided that includes a first frame for securing to the windscreen and a second frame for securing to the canopy. At least one movable joint connects the first frame to the second frame. The at least one movable joint deforms in response to an object striking at least one of the windscreen and the canopy to allow for relative movement between the first and second frames.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: March 3, 2020
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Charles Pak, Brandon T. Keller
  • Enhanced solubility of preformed calcium citrate by adding citric acid
    Publication number: 20070065542
    Abstract: The present invention includes compositions and methods for the preparation and delivery of calcium citrate under physiological conditions by preparing solid preformed calcium citrate, adding citric acid to the calcium citrate, wherein citric acid is added to the calcium citrate in a molar ratio of between 0.1 and 0.6 mol of citric acid per mol of calcium citrate to provide a calcium citrate-citric acid mixture; and forming a tablet from the calcium citrate-citric acid mixture. The compositions and methods were found to increase the solubility of iron and calcium.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 22, 2007
    Applicant: Board Of Regents, The University Of Texas System
    Inventor: Charles Pak
  • Rapid and accurate detection of bone quality using ultrasound critical angle reflectometry
    Publication number: 20050015010
    Abstract: The present invention is an apparatus, method and system for determining the coefficient of elasticity of a target by detecting determining simultaneously two or more critical-angle reflections of an ultrasound wave from the target using an ultrasound transducer that includes a transmitter and two or more receivers and calculating the elasticity coefficients of the target.
    Type: Application
    Filed: July 30, 2003
    Publication date: January 20, 2005
    Applicant: Board Of Regents, The University Of Texas System
    Inventors: Peter Antich, Charles Pak, Billy Smith, Edmond Richer, Matthew Lewis
  • Peptide-lipid conjugates, liposomes and lipsomal drug delivery
    Patent number: 6339069
    Abstract: Peptide-lipid conjugates are incorporated into liposomes so as to selectively destabilize the liposomes in the vicinity of target peptidase-secreting cells, and hence, to deliver the liposomes to the vicinity of the target cells, or directly into the cells. The liposomes can thus be used to treat mammals for diseases, disorders or conditions, e.g., tumors, microbial infection and inflammations, characterized by the occurrence of peptidase-secreting cells.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: January 15, 2002
    Assignee: Elan PharmaceuticalsTechnologies, Inc.
    Inventors: Paul R. Meers, Charles Pak, Shaukat Ali, Andrew Janoff, J. Craig Franklin, Ravi K. Erukulla, Donna Cabral-Lilly, Patrick L. Ahl
  • N-acyl phosphatidylethanolamine-mediated liposomal drug delivery
    Patent number: 6294191
    Abstract: This invention provides liposomes containing one or more N-acylated phosphatidylethanolamines, such liposomes being useful for localizing the delivery of bioactive agents to cells.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: September 25, 2001
    Assignee: The Liposome Company, Inc.
    Inventors: Paul R. Meers, Tong Shangguan, Shaukat Ali, Andrew Janoff, Charles Pak
  • Liposomal peptide-lipid conjugates and delivery using same
    Patent number: 6143716
    Abstract: Peptide-lipid conjugates are incorporated into liposomes so as to selectively destabilize the liposomes in the vicinity of target peptidase-secreting cells, and hence, to deliver the liposomes to the vicinity of the target cells, or directly into the cells. The liposomes can thus be used to treat mammals for diseases, disorders or conditions, e.g., tumors, microbial infection and inflammations, characterized by the occurrence of peptidase-secreting cells.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: November 7, 2000
    Assignee: The Liposome Company, Inc.
    Inventors: Paul R. Meers, Charles Pak, Shaukat Ali, Andrew Janoff, J. Craig Franklin, Ravi K. Erukulla, Donna Cabral-Lilly
  • N-acyl phosphatidylethanolamine-mediated liposomal drug delivery
    Patent number: 6120797
    Abstract: This invention provides liposomes containing one or more N-acylated phosphatidylethanolamines, such liposomes being useful for localizing the delivery of bioactive agents to cells.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: September 19, 2000
    Assignee: The Liposome Company, Inc.
    Inventors: Paul R. Meers, Tong Shangguan, Shaukat Ali, Andrew Janoff, Charles Pak
  • Peptide-lipid conjugates
    Patent number: 6087325
    Abstract: Peptide-lipid conjugates are incorporated into liposomes so as to selectively destabilize the liposomes in the vicinity of target peptidase-secreting cells, and hence, to deliver the liposomes to the vicinity of the target cells, or directly into the cells. The liposomes can thus be used to treat mammals for diseases, disorders or conditions, e.g., tumors, microbial infection and inflammations, characterized by the occurrence of peptidase-secreting cells.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: July 11, 2000
    Assignee: The Liposome Company, Inc.
    Inventors: Paul R. Meers, Charles Pak, Shaukat Ali, Andrew Janoff, J. Craig Franklin, Ravi K. Erukulla, Donna Cabral-Lilly