Patents by Inventor Ursula Paffen nee Siebert

Ursula Paffen nee Siebert 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).

  • Method of producing an electrode usable as a flow-through anode
    Patent number: 4512858
    Abstract: An anode for electrolytic oxidation of sulfur dioxide is made by coating an lectrode of a graphite-like carbon material with a layer of cokable organic material such as sugar, phenolic resin, and asphalt pitch, heating the coated electrode body in an inert atmosphere to a temperature of between 400.degree. to 800.degree. C. and thereafter heating the coated electrode to a temperature in the range of 1400.degree. to 2000.degree. C., so that the material is first coked on the graphite to produce a porous flow-through electrode body which, thereafter, is heated to a higher temperature, followed by cooling.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: April 23, 1985
    Assignee: Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftung
    Inventors: Bernd D. Struck, Francisco J. Dias, Hartmut Luhleich, Ursula Paffen nee Siebert