Patents by Inventor John R. Parziale

John R. Parziale 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).

  • Use of hydrazidothioates as additives for functional fluids
    Patent number: 4210543
    Abstract: Disclosed is the use of selected hydrazidothioates as ashless load-carrying additives for functional fluids. These hydrazidothioates have the formula: ##STR1## with R.sub.1 being either -NHNH.sub.2 or ##STR2## group.
    Type: Grant
    Filed: November 1, 1978
    Date of Patent: July 1, 1980
    Assignee: Olin Corporation
    Inventors: Frank J. Milnes, John R. Parziale
  • Use of 2,4-di(lower alkyl)-1,2,4-thiadiazolidin-3,5-diones as additives for functional fluids
    Patent number: 4183816
    Abstract: Disclosed is the use of 2,4-di(lower alkyl)-1,2,4-thiadiazolidin-3,5-diones as ashless load-carrying additives for functional fluids. These thiadiazolidin-3,5-diones have the formula: ##STR1## wherein R.sub.1 and R.sub.2 are lower alkyl groups having 1-4 carbon atoms.
    Type: Grant
    Filed: November 1, 1978
    Date of Patent: January 15, 1980
    Assignee: Olin Corporation
    Inventors: David F. Gavin, Frank J. Milnes, John R. Parziale