Assignee
CRA SERVICES
AU·13 granted patents·247 citations·filing 1986–1995
Top patents by PatentIndex Score
13 records- 0191US5489325AProcess for producing metals and metal alloys in a smelt reduction vesselCRA SERVICES·Filed 1991·Granted Feb 6, 1996·47 cites·9 claims
- 0280US4951825AApparatus for classifying particulate materialCRA SERVICES·Filed 1989·Granted Aug 28, 1990·51 cites·12 claims
- 0378US5647888AProcess for producing metals and metal alloys in a smelt reduction vesselCRA SERVICES·Filed 1995·Granted Jul 15, 1997·26 cites·10 claims
- 0476US5302184AManufacture of ferroalloys using a molten bath reactorCRA SERVICES·Filed 1990·Granted Apr 12, 1994·33 cites·21 claims
- 0572US4741770AZinc smelting process using oxidation zone and reduction zoneCRA SERVICES·Filed 1986·Granted May 3, 1988·23 cites·4 claims
- 0669US5260040AExtraction and recovery of goldCRA SERVICES·Filed 1991·Granted Nov 9, 1993·23 cites·6 claims
- 0754US5201940APre-heating and pre-reduction of a metal oxideCRA SERVICES·Filed 1990·Granted Apr 13, 1993·9 cites·11 claims
- 0852US5198019AManufacture of iron and steel in a duplex smelter and solid state oxide suspension prereducerCRA SERVICES·Filed 1989·Granted Mar 30, 1993·9 cites·12 claims
- 0951US5316268AMethod for increasing the durability of refractory vessel liningsCRA SERVICES·Filed 1993·Granted May 31, 1994·8 cites·12 claims
- 1039US5088331AApparatus for measuring a mass streamCRA SERVICES·Filed 1990·Granted Feb 18, 1992·8 cites·5 claims
- 1133US5364446AHeating and treatment of particulate materialCRA SERVICES·Filed 1990·Granted Nov 15, 1994·4 cites·24 claims
- 1233US5227116AManufacture of iron and steel in a duplex smelter and solid state oxide suspension prereducerCRA SERVICES·Filed 1992·Granted Jul 13, 1993·3 cites·7 claims
- 1326US5262136ARecovery of gold and silver from complex refractory sulphide ores by cyanidisation and oxidation with peroxidesCRA SERVICES·Filed 1990·Granted Nov 16, 1993·3 cites·7 claims
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