Patents by Inventor Tony Ozog

Tony Ozog 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).

  • Preparation of dialkyldithiophosphinates
    Patent number: 4308214
    Abstract: Dialkylphosphine is added to a mixture of sulfur and water at 50.degree.-90.degree. C. After approximately 25% of the dialkylphosphine is charged, an alkali, such a sodium hydroxide, is added to neutralize the dialkyldithiophosphinic acid that forms. At this elevated temperature the neutralization reaction proceeds rapidly thereby preventing any alkali from reacting with the sulfur to form sulfides. Dialkyldithiophosphinate yields from this process are on the order of about 95-98%.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: December 29, 1981
    Assignee: Cyanamid Canada Inc.
    Inventors: Allan J. Robertson, Tony Ozog