Inventor · disambiguated record
Richard J. Fruehan
Also filed as: FRUEHAN RICHARD J
8 granted patents·1 pending application·45 citations·filing 1974–2010
83Inventor score
Top patents by PatentIndex Score
9 records- 0175US4004920AMethod of producing low nitrogen steelUNITED STATES STEEL CORP·Filed 1975·Granted Jan 25, 1977·10 cites·6 claims
- 0272US7556667B2Low carbon aluminum production method using single furnace carbothermic reduction operated in batch modeALCOA INC·Filed 2007·Granted Jul 7, 2009·2 cites·9 claims
- 0371US6849101B1Method using selected carbons to react with Al2O and Al vapors in the carbothermic production of aluminumALCOA INC·Filed 2003·Granted Feb 1, 2005·17 cites·12 claims
- 0459US3930843AMethod for increasing metallic yield in bottom blown processesUNITED STATES STEEL CORP·Filed 1974·Granted Jan 6, 1976·9 cites·8 claims
- 0553US7753988B2Use of alumina-carbon agglomerates in the carbothermic production of aluminumALCOA INC·Filed 2007·Granted Jul 13, 2010·0 cites·14 claims
- 0649US7819937B2Use of alumina-carbon agglomerates in the carbothermic production of aluminumALCOA INC·Filed 2010·Granted Oct 26, 2010·0 cites·12 claims
- 0740US2006042413A1Method using single furnace carbothermic reduction with temperature control within the furnaceFRUEHAN RICHARD J·Filed 2004·Application pending·0 cites
- 0836US5378260ATwo-zone countercurrent smelter system and processUS ARMY·Filed 1991·Granted Jan 3, 1995·6 cites·15 claims
- 0928US3954445AMethod of controlling temperature in Q-BOPUNITED STATES STEEL CORP·Filed 1974·Granted May 4, 1976·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →