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(11)

EP 2 773 783 A1

(12)

(43) Date of publication: 10.09.2014 Bulletin 2014/37 (21) Application number: 12846133.2 (22) Date of filing: 31.10.2012

(51) International Patent Classification (IPC):  C22B 60/02(2006.01) C01G 43/00(2006.01) (86) International application number: PCT/US2012/062711 (87) International publication number: WO 2013/066957 (10.05.2013 Gazette 2013/19)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 31.10.2011 US 201161553742 P (71) Applicants: Urtek, Llc Golden, CO 80401 (US) Richardson, Marcus, Worsley Goodwood, SA 5034 (AU) Davidson, James, Andrew Wattle Park, SA 5066 (AU) Jones, Bryn, Llywelyn Littlehampton, SA 5250 (AU) Page, Jessica, Mary Toorack Gardens, SA 5065 (AU) Soldenhoff, Karin, Helene Earlwood, NSW 2206 (AU) Safinski, Tomasz, Artur Cronulla, NSW 2230 (AU) Tran, Manh, Toan Fairfield, NSW 2165 (AU)

(72) Inventors: RICHARDSON, Marcus, Worsley Goodwood, SA 5034 (AU) DAVIDSON, James, Andrew Wattle Park, SA 5066 (AU) JONES, Bryn, Llywelyn Littlehampton, SA 5250 (AU) PAGE, Jessica, Mary Toorack Gardens, SA 5065 (AU) SOLDENHOFF, Karin, Helene Earlwood, NSW 2206 (AU) SAFINSKI, Tomasz, Artur Cronulla, NSW 2230 (AU) TRAN, Manh, Toan Fairfield, NSW 2165 (AU) (74) Representative: Wright, Simon Mark  J A Kemp 14 South Square Gray's Inn London WC1R 5JJ London WC1R 5JJ (GB)