Richard B. Greenwalt

Person

Danville, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method for direct reduction and upgrading of fine-grained refractor...
- Patent number 6,355,088
- Issue date Mar 12, 2002
- Bechtel Corporation
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Magnetically enhanced gravity separator
- Patent number 6,273,265
- Issue date Aug 14, 2001
- Bechtel Corporation
- Richard B. Greenwalt
- B08 - CLEANING
Information Patent Grant
Producing liquid iron having a low sulfur content
- Patent number 6,197,088
- Issue date Mar 6, 2001
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for direct reduction and upgrading of fine-grained refractor...
- Patent number 6,048,382
- Issue date Apr 11, 2000
- Bechtel Corporation
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Shift conversion for the preparation of reducing gas
- Patent number 5,958,107
- Issue date Sep 28, 1999
- Bechtel Croup, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of providing fuel for an iron making process
- Patent number 5,630,862
- Issue date May 20, 1997
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of direct steel making from liquid iron
- Patent number 5,558,696
- Issue date Sep 24, 1996
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of processing waste material containing non ferrous metal ox...
- Patent number 5,470,375
- Issue date Nov 28, 1995
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of making iron from oily steel and iron ferrous waste
- Patent number 5,429,658
- Issue date Jul 4, 1995
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of making hot metals with totally recycled gas
- Patent number 5,413,622
- Issue date May 9, 1995
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of providing fuel for an iron making process
- Patent number 5,397,376
- Issue date Mar 14, 1995
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of using rubber tires in an iron making process
- Patent number 5,380,352
- Issue date Jan 10, 1995
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of providing fuel for an iron making process
- Patent number 5,354,356
- Issue date Oct 11, 1994
- Bechtel Group Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of processing electric arc furnace dust and providing fuel f...
- Patent number 5,338,336
- Issue date Aug 16, 1994
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Low slag iron making process with injecting coolant
- Patent number 5,320,676
- Issue date Jun 14, 1994
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of disposing of environmentally undesirable material and pro...
- Patent number 5,259,864
- Issue date Nov 9, 1993
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Very low slag iron making process
- Patent number 5,259,865
- Issue date Nov 9, 1993
- Bechtel Group, Inc.
- Richard B. Greenwalt
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct reduction of ores and concentration of metallic values
- Patent number 4,416,688
- Issue date Nov 22, 1983
- Raymond Kaiser Engineers, Inc.
- Richard B. Greenwalt
- B22 - CASTING POWDER METALLURGY

Richard B. Greenwalt

Person

Patents Grantslast 30 patents

Method for direct reduction and upgrading of fine-grained refractor...

Magnetically enhanced gravity separator

Producing liquid iron having a low sulfur content

Method for direct reduction and upgrading of fine-grained refractor...

Shift conversion for the preparation of reducing gas

Method of providing fuel for an iron making process

Method of direct steel making from liquid iron

Method of processing waste material containing non ferrous metal ox...

Method of making iron from oily steel and iron ferrous waste

Method of making hot metals with totally recycled gas

Method of providing fuel for an iron making process

Method of using rubber tires in an iron making process

Method of providing fuel for an iron making process

Method of processing electric arc furnace dust and providing fuel f...

Low slag iron making process with injecting coolant

Method of disposing of environmentally undesirable material and pro...

Very low slag iron making process

Direct reduction of ores and concentration of metallic values