Patents by Inventor Wolfgang A. Hochleitner

Wolfgang A. Hochleitner 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).

  • Bioartificial device for the storage, cultivation and/or multiplication of cells
    Patent number: 7067307
    Abstract: The bioartificial reactor has a reactor vessel. A cell culture chamber in the reactor, in particular for liver cells, is divided off from a flow chamber for a nutritive medium and from a flow chamber for plasma and blood by semipermeable walls. At least one flow chamber is formed as a tube that is helically wound in the shape of a screw and that is made of semipermeable material.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: June 27, 2006
    Assignee: Raimung Margreiter
    Inventors: Boris-Wolfgang Hochleitner, Paul Hengster
  • Bioartificial device for the storage, cultivation and/or multiplication of cells
    Publication number: 20040033593
    Abstract: The bioartificial reactor has a reactor vessel. A cell culture chamber in the reactor, in particular for liver cells, is divided off from a flow chamber for a nutritive medium and from a flow chamber for plasma and blood by semipermeable walls. At least one flow chamber is formed as a tube that is helically wound in the shape of a screw and that is made of semipermeable material.
    Type: Application
    Filed: August 14, 2003
    Publication date: February 19, 2004
    Inventors: Boris-Wolfgang Hochleitner, Paul Hengster
  • Fixation of heavy metals, mercury recovery and dioxins destruction in municipal solid waste incinerator ash
    Patent number: 5347073
    Abstract: Fly ash generated from incineration of municipal solid waste (MSW) when placed in landfills can under mild acid conditions 1each lead and cadmium. A process for stabilizing lead in this fly ash is presented which involves calcining a mixture of the fly ash and certain calcium-containing compounds in the presence of an oxygen containing gas stream at a temperature greater than about 475.degree. C. and less than about 600.degree. C. for times from about 30 minutes up to about 5 hours. Such treated MSW fly ash will give leachates containing lead concentrations less than the EPA regulatory limit.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: September 13, 1994
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Wolfgang A. Hochleitner, Stephen P. Goff
  • Fixation of heavy metals, mercury recovery and dioxins destruction in scrubbed municipal solid waste incinerator ash
    Patent number: 5347074
    Abstract: Fly ash generated from incineration of municipal solid waste (MSW) when placed in landfills can under mild acid conditions can leach lead and cadmium. A process for stabilizing heavy metals in this fly ash is presented which involves calcining the fly ash in the presence of an oxygen containing gas stream at a temperature greater than about 400.degree. C. and less than about 600.degree. C. for times from about 170 seconds up to about 5 hours fly ash which has been subjected to calcium scrubbing for acid gas removal. Such treated MSW fly ash will give leachates containing heavy metal concentrations less than the EPA regulatory limit.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: September 13, 1994
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Wolfgang A. Hochleitner, Stephen P. Goff