Patents by Inventor Helena Eliasson

Helena Eliasson 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).

  • Dairy wastewater treatment
    Patent number: 7097736
    Abstract: A process and apparatus for recycling dairy wastewater wherein the wastewater is supplied to at least one first evaporation apparatus to produce a water distillate and sludge. The sludge is then supplied to at least one second evaporation apparatus arranged in series with the first evaporation apparatus. The process results in recycled water and a final sludge.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: August 29, 2006
    Assignee: Alfa Laval Corporate AB
    Inventors: Torsten Jonsson, Jan Hellstrom, Helena Eliasson, Lars-Ola Myrefelt
  • Dairy wastewater treatment
    Publication number: 20030168182
    Abstract: In a process for recycling dairy wastewater the wastewater is supplied to at least one first evaporation apparatus (4, 5, 6), the concentrate (F, I, Q) of which is supplied to at least one second evaporation apparatus (12, 13) arranged in series with the first evaporation apparatus. The process results in recycled water (O) and a final sludge (d).
    Type: Application
    Filed: September 30, 2002
    Publication date: September 11, 2003
    Inventors: Torsten Jonsson, Jan Hellstrom, Helena Eliasson, Lars-Ola Myrefelt