Patents by Inventor Byeong Chang

Byeong Chang 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).

  • Compositions of pegylated soluble tumor necrosis factor receptors and methods of preparing
    Publication number: 20030236196
    Abstract: The present invention provides for improved compositions comprising a PEGsTNF-R1 which, in addition to having useful higher concentrations, demonstrate decreased viscosity (<400 cP) and improved stability.
    Type: Application
    Filed: June 12, 2003
    Publication date: December 25, 2003
    Applicant: Amgen Inc.
    Inventors: Bruce Kerwin, Byeong Chang, Lei Shi
  • L-methionine as a stabilizer for NESP/EPO in HSA-free formulations
    Publication number: 20030104996
    Abstract: The present invention relates to single use and multi-dose pharmaceutical formulations comprising a biologically active agent and methionine, wherein said formulations demonstrate improved stability, and wherein said formulations do not contain human serum albumin.
    Type: Application
    Filed: August 30, 2001
    Publication date: June 5, 2003
    Inventors: Tiansheng Li, Byeong Chang, Christopher Sloey
  • Portable computer having universal serial bus ports controlled power supply and a method of the same
    Patent number: 6516418
    Abstract: A portable computer system with universal serial bus (USB) port or ports and a method for controlling power of the universal serial bus (USB) port is described. When the main power of the portable computer system is supplied from a battery rather than an alternating current (AC) adapter, the power of the universal serial bus (USB) port is automatically shut down. In addition, the power of the universal serial bus (USB ) port is completely shut down while the universal serial bus (USB) port is not used in response to a setting state of the universal serial bus (USB) port, thereby reducing unnecessary power consumption. Further, when an over-current is detected from the alternating current (AC) adapter or the battery, the power of the universal serial bus (USB) port is shut down, whereby damage to peripheral devices coupled to the universal serial bus (USB) port can be prevented.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: February 4, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Byeong-Chang Lee