Patents by Inventor Fred P. Boerwinkle

Fred P. Boerwinkle 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).

  • Volatile corrosion inhibiting article
    Patent number: 4290912
    Abstract: Plastic articles having volatile corrosion inhibiting properties are described. The plastic articles comprise polyolefin polymer, an inorganic nitrite salt, a trisubstituted phenol and fumed silica.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: September 22, 1981
    Assignee: Northern Instruments Corporation
    Inventors: Fred P. Boerwinkle, Donald A. Kubik
  • Corrosion inhibiting compositions
    Patent number: 4131583
    Abstract: Compositions are described which contain (a) a salt of carboxylic acid and organic amine, and (b) water-dispersible polymer. The compositions, which are preferably water-based, provide particularly good corrosion resistance to metals.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: December 26, 1978
    Assignee: Northern Instruments Corporation
    Inventor: Fred P. Boerwinkle
  • Corrosion inhibiting compositions
    Patent number: 4130524
    Abstract: Compositions are described which contain (a) salt of carboxylic acid and organic amine, (b) salt of phosphoric acid and organic amine or salt of alkyl acid phosphate and organic amine, and (c) water-dispersible polymer. The compositions are preferably water-based and provide particularly good corrosion resistance to metals.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: December 19, 1978
    Assignee: Northern Instruments Corporation
    Inventors: Fred P. Boerwinkle, Tadeusz Szauer