NKK Steel Engineering, Inc.

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Mars, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Direct current arc furnace and a method for melting or heating raw...
- Patent number 6,137,822
- Issue date Oct 24, 2000
- NKK Steel Engineering, Inc.
- Joseph L. Hake
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Method and apparatus for operating a furnace
- Patent number 6,038,246
- Issue date Mar 14, 2000
- NKK Steel Engineering, Inc.
- Hiroshi Shimizu
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Arc furnace and method in which molten material is stirred and the...
- Patent number 5,956,366
- Issue date Sep 21, 1999
- NKK Steel Engineering, Inc.
- Hiroshi Shimizu
- F27 - FURNACES KILNS OVENS RETORTS

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Trademarklast 30 trademarks

Information Trademark
75265307 - OPTIMARC
- Serial number 75265307
- Registration number 2369008
- Filing date Mar 27, 1997
- NKK Steel Engineering, Inc.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments