Patents by Inventor Karen A. Tellefsen

Karen A. Tellefsen 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).

  • Soldering flux
    Patent number: 6599372
    Abstract: A soldering flux includes a resin in an aqueous composition. The flux can also include an activating agent and a surface-active agent that promotes surface wetting. The flux can be used to coat circuits and a printed circuit board. The resin can be non-acidic and/or in an emulsified form.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: July 29, 2003
    Assignee: Fry's Metals, Inc.
    Inventors: Sanyogita Arora, Alvin F. Schneider, Karen A. Tellefsen
  • Soldering flux
    Publication number: 20010042775
    Abstract: A soldering flux includes a non-acidic resin in an aqueous composition. The flux can also include an activating agent and a surface-active agent that promotes surface wetting.
    Type: Application
    Filed: December 1, 2000
    Publication date: November 22, 2001
    Inventors: Sanyogita Arora, Alvin F. Schneider, Karen A. Tellefsen