Removal of nitrogen from landfill leachate using high surface area packing in a reactor with immobilized cells

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Listed from its IP Australia record in Patent Yard's archive of Australian patents past their term. Its claims, description and drawings are in the AusPat record and on Google Patents, and the Claude kit works from them.

Why it's free to use

• Filed January 12, 2004. An Australian innovation patent lasts at most 8 years from its date of patent, at most a year after this filing, so it ended by January 12, 2013.
• We check Australian rights only. A patent in its family in another country could still be in force.