Patents by Inventor Edward F. Zaweski

Edward F. Zaweski 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).

  • Lubricant composition
    Patent number: 4278555
    Abstract: Lubricating oil formulated for use in an engine crankcase having improved anticorrosion property imparted by addition of a minor amount of the combination of (A) a block-oxyalkylated trimethylol alkane containing an initial hydrophobic block of propyleneoxy and optionally random ethyleneoxy units and a terminal hydrophilic block of ethyleneoxy and optionally random propyleneoxy units and (B) an oxyethylated alkylphenol.
    Type: Grant
    Filed: December 20, 1979
    Date of Patent: July 14, 1981
    Assignee: Ethyl Corporation
    Inventors: Edward F. Zaweski, Christian S. Harstick
  • Improved crankcase lubricant composition
    Patent number: 4208293
    Abstract: Lubricating oil adapted for use as a crankcase lubricant in internal combustion engines containing a friction-reducing amount of a fatty acid amide or ester of diethanolamine.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: June 17, 1980
    Assignee: Ethyl Corporation
    Inventor: Edward F. Zaweski
  • Lubricating oil composition
    Patent number: 4178258
    Abstract: Lubricating oil adapted for use in spark ignited and diesel engines containing an antiwear amount of a molybdenum bis(dialkyldithiocarbamate).
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: December 11, 1979
    Assignee: Edwin Cooper, Inc.
    Inventors: Andrew G. Papay, Edward F. Zaweski