Patents by Inventor David H. Bing

David H. Bing 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).

  • Electrodialysis preparation of purified AHF concentrate
    Patent number: 4435318
    Abstract: A process is described for the preparation of a novel protein product of a highly purified antihemophlic factor (AHF) concentrate. The product is prepared by use of a semi-permeable membrane apparatus that desalts the plasma to between 45 to 80% of its salt content while constantly maintaining the plasma at substantially its original starting pH level. Under these conditions the AHF portion of the plasma will precipitate.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: March 6, 1984
    Assignee: Ionics, Incorporated
    Inventors: Patrea L. Pabst, David H. Bing
  • Means and methods for purifying Clq, Clr and Cls
    Patent number: 4374061
    Abstract: A novel resin is provided for use in chromatography to enable purification of plasma proteins Clq, Clr and Cls from Cohn Fraction I and other materials. An improved method results in obtaining substantially all of these materials from Cohn Fraction I or other media. The components of complement thus obtained are highly purified and retain full biological activity.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: February 15, 1983
    Assignee: Center For Blood Research, Inc.
    Inventor: David H. Bing
  • Amidinophenylmethylsulfonylfluoride
    Patent number: 4303592
    Abstract: A new compound amidinophenylmethylsulfonylfluoride is formed and preferably used in the para isomer form as an irreversible inactivator of selected serine proteases.
    Type: Grant
    Filed: January 9, 1980
    Date of Patent: December 1, 1981
    Assignee: Center for Blood Research, Inc.
    Inventors: Richard Laura, David H. Bing