David J. Diederich

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Lorain, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Tundish having fume collection provisions
- Patent number 6,083,453
- Issue date Jul 4, 2000
- USS/KOBE Steel Company
- David J. Diederich
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Torch cutting enclosure having fume collection provisions
- Patent number 6,077,473
- Issue date Jun 20, 2000
- USS/KOBE Steel Company
- David J. Diederich
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Technique and apparatus for ladle cleanout
- Patent number 6,071,467
- Issue date Jun 6, 2000
- USS/KOBE Steel Company
- John Paddock
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Dumping bay with fume collecting provisions
- Patent number 6,036,914
- Issue date Mar 14, 2000
- USS/KOBE Steel Company
- David J. Diederich
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Comprehensive fume collection system for production of leaded steel
- Patent number 6,017,486
- Issue date Jan 25, 2000
- USS/Kobe Steel Company
- David J. Diederich
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Fume collecting ladle cover
- Patent number 5,993,727
- Issue date Nov 30, 1999
- USS/KOBE Steel Company
- David J. Diederich
- C21 - METALLURGY OF IRON
Information Patent Grant
Tundish for mixing alloying elements with molten metal
- Patent number 4,711,429
- Issue date Dec 8, 1987
- USX Corporation
- David J. Diederich
- B22 - CASTING POWDER METALLURGY