76415 (1967) Process developed at the National Metallurgical Laboratory: Modification of Aluminium Silicion alloys - India Patents No. 76415. India Patents No. 76415.
Indian Patent Nos. 58869 & 62352 (1967) Process developed at the National Metallurgical Laboratory: Production of Graphite Crucibles (Carbon and Clay bonded) - India Patents No. 58869 & 62352. Indian Patent Nos. 58869 & 62352.
US2006000491916 (2008) Process for the production of Portland slag cement using granulated blast furnace slag. US7410537.
US2003000393398 (2005) Process for the production of zirconium boride powder. US6908599.
US2002000045033 (2003) Sensing device for the non-destructive evaluation of steel structures or components. US6617847.
US2002000112053 (2003) Process for the recovery of gold and silver from used refractory bricks. US6602319.
61978, 61980 (1958) Nickel-free chromium-manganese-nitrogen stainless steel. 61978, 61980.
Park Kyung-Ho, Nam Chul-Woo, Mishra Devabrata (2010) Leaching method of valuable metals from synthetic matte. 10-0999194/01.12.2010.
US2003000393297 (2008) Process for recovery of gallium. US7338589.
US2002000095526 (2004) Process for recovery of nickel from spent catalyst. US6733564.
EP2002000708620 (2006) Process for the recovery of nickel from spent catalyst. EP1488015B1.
US2002000112044 (2004) Process for the preparation of nanosized iron oxide by biomimetic route. US6800271.
