Patents by Inventor Isabelle S. Muller

Isabelle S. Muller 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 for vitrifying ash
    Patent number: 5430236
    Abstract: By changing the additives to an off-gas system in an incinerator bag house, by replacing part of a normally added calcium compound with a sodium compound, one can reduce the amount of sodium compound needed for a combined off-gas from incineration and glass melting system, reduce the amount of glass produced for a given amount of waste to be incinerated, and thereby reduce the cost of installing a glass melter and the cost of energy (electricity) needed to produce glass.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: July 4, 1995
    Assignees: Pedro B. de Macedo, Theodore A. Litovitz
    Inventors: Pedro B. de Macedo, Hamid Hojaji, Isabelle S. Muller