Inventor · disambiguated record
Richard B. Greenwalt
Also filed as: GREENWALT RICHARD B
18 granted patents·351 citations·filing 1982–2000
95Inventor score
Top patents by PatentIndex Score
18 records- 0182US5630862AMethod of providing fuel for an iron making processBECHTEL GROUP INC·Filed 1993·Granted May 20, 1997·31 cites·72 claims
- 0282US5259864AMethod of disposing of environmentally undesirable material and providing fuel for an iron making process e.g. petroleum cokeBECHTEL GROUP INC·Filed 1992·Granted Nov 9, 1993·36 cites·8 claims
- 0380US6048382AMethod for direct reduction and upgrading of fine-grained refractory and earthy iron ores and slagsBECHTEL CORP·Filed 1998·Granted Apr 11, 2000·37 cites·34 claims
- 0480US5338336AMethod of processing electric arc furnace dust and providing fuel for an iron making processBECHTEL GROUP INC·Filed 1993·Granted Aug 16, 1994·29 cites·21 claims
- 0577US4416688ADirect reduction of ores and concentration of metallic valuesKAISER RAYMOND ENG·Filed 1982·Granted Nov 22, 1983·23 cites·6 claims
- 0676US5470375AMethod of processing waste material containing non ferrous metal oxidesBECHTEL GROUP INC·Filed 1994·Granted Nov 28, 1995·26 cites·4 claims
- 0775US6273265B1Magnetically enhanced gravity separatorBECHTEL CORP·Filed 2000·Granted Aug 14, 2001·20 cites·25 claims
- 0871US5413622AMethod of making hot metals with totally recycled gasBECHTEL GROUP INC·Filed 1993·Granted May 9, 1995·22 cites·8 claims
- 0969US5380352AMethod of using rubber tires in an iron making processBECHTEL GROUP INC·Filed 1993·Granted Jan 10, 1995·23 cites·2 claims
- 1067US5958107AShift conversion for the preparation of reducing gasBECHTEL CROUP INC·Filed 1997·Granted Sep 28, 1999·24 cites·11 claims
- 1165US5397376AMethod of providing fuel for an iron making processBECHTEL GROUP INC·Filed 1993·Granted Mar 14, 1995·14 cites·39 claims
- 1264US5259865AVery low slag iron making processBECHTEL GROUP INC·Filed 1993·Granted Nov 9, 1993·13 cites·18 claims
- 1360US5354356AMethod of providing fuel for an iron making processBECHTEL GROUP INC·Filed 1992·Granted Oct 11, 1994·11 cites·15 claims
- 1460US5320676ALow slag iron making process with injecting coolantBECHTEL GROUP INC·Filed 1993·Granted Jun 14, 1994·13 cites·26 claims
- 1556US6355088B1Method for direct reduction and upgrading of fine-grained refractory and earthy iron ores and slagsBECHTEL CORP·Filed 1999·Granted Mar 12, 2002·10 cites·37 claims
- 1648US5558696AMethod of direct steel making from liquid ironBECHTEL GROUP INC·Filed 1993·Granted Sep 24, 1996·8 cites·8 claims
- 1746US6197088B1Producing liquid iron having a low sulfur contentBECHTEL GROUP INC·Filed 1999·Granted Mar 6, 2001·6 cites·19 claims
- 1844US5429658AMethod of making iron from oily steel and iron ferrous wasteBECHTEL GROUP INC·Filed 1994·Granted Jul 4, 1995·5 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →