Patents by Inventor Donald R. Rosegren

Donald R. Rosegren 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).

  • Bath and process for high speed nickel electroplating
    Patent number: 4411744
    Abstract: Electroplating baths for producing semi-bright, ductile, low stressed nickel deposits in an electrodeposition process utilizing insoluble anodes are disclosed. The nickel baths contain, in addition to nickel salts, ortho-formyl benzene sulfonic acid and perfluorocyclohexyl potassium sulfonate.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: October 25, 1983
    Assignee: Occidental Chemical Corporation
    Inventors: Donald R. Rosegren, Linda J. Mayer
  • Process for high speed nickel and gold electroplate system and article having improved corrosion resistance
    Patent number: 4411965
    Abstract: A method of electrodepositing a gold alloy layer having improved corrosion protection is disclosed. Prior to the gold layer an underlayer of ductile, low-stress nickel is electrodeposited from a solution containing ortho-formyl benzene sulfonic acid and perfluorocyclohexyl potassium sulfonate.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: October 25, 1983
    Assignee: Occidental Chemical Corporation
    Inventors: Donald R. Rosegren, Linda J. Mayer
  • Silver electrodeposition process
    Patent number: 4265715
    Abstract: Compositions for electrodepositing silver, comprising a soluble silver compound, a non-cyanide electrolyte and selected organic phosphonate compounds, are described. These are stable for prolonged periods and are capable of depositing silver at relatively high rates without the need for soluble silver electrodes or cyanide replenishment to the bath, in contrast to conventional procedures.
    Type: Grant
    Filed: July 13, 1979
    Date of Patent: May 5, 1981
    Assignee: Oxy Metal Industries Corporation
    Inventors: Donald R. Rosegren, Noreen C. Johnson (Bulsiewicz), Peter Stevens