Patents by Inventor Allassan Abubakari

Allassan Abubakari 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).

  • Process for removing trace amounts of hydrazine
    Patent number: 4532318
    Abstract: A method for removing trace amounts of contaminating hydrazine from pharmaceutical grade PVP. An aqueous solution of PVP is contacted with a gaseous stream containing ozone for a period of time sufficient to remove the hydrazine.
    Type: Grant
    Filed: September 5, 1984
    Date of Patent: July 30, 1985
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Allassan Abubakari, Alfred H. Holstein