C21C 2005/5235
With bottom electrodes
Official title: {with bottom electrodes}
C21C2005/5235 (With bottom electrodes) appears on 28 US grants and 7 published applications in this corpus.
Search patents in C21C- Granted patents
- 28
- Published applications
- 7
- Assignees
- 22
- Inventors
- 52
- Latest grant
- 25 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for smelting low nitrogen steel using electric furnace25 Jun 2024US 12,018,341 B2Baoshan Iron & Steel Co., Ltd.
- Electrodes comprising nanostructured carbon30 Oct 2018US 10,115,844 B2Seerstone LLC
- Slag-supplying container for use in electric furnace for reduction processing of steel-making slag3 Jan 2017US 9,534,266 B2Nippon Steel & Sumitomo Metal Corporation
- Reduction processing apparatus for steel-making slag and reduction processing system for steel-making slag19 Jan 2016US 9,238,846 B2Nippon Steel & Sumitomo Metal Corporation
- Method of reduction processing of steel-making slag22 Dec 2015US 9,217,185 B2Nippon Steel & Sumitomo Metal Corporation
- Anode for direct current electric arc furnace25 Dec 2025US 2025/0393105 A1HarbisonWalker International Holdings, Inc.
- Method for smelting low nitrogen steel using electric furnace18 Nov 2021US 2021/0355555 A1Baoshan Iron & Steel Co., Ltd.
- Electrodes comprising nanostructured carbon19 Sep 2019US 2019/0288133 A1Seerstone LLC
- Electrodes comprising nanostructured carbon28 Jan 2016US 2016/0027934 A1Seerstone LLC
- Method of reduction processing of steel-making slag21 May 2015US 2015/0135896 A1Nippon Steel & Sumitomo Metal Corporation
Most cited
By later US patents
- Bottom electrodes for arc furnaces11US 4,754,464 AMannesmann Aktiengesellschaft · 1988
- Method to protect the anode bottoms in batch DC electric arc furnace steel production10US 6,693,947 B1D. L. Schroeder & Associates · 2004
- Electrical connection device intended to be placed through the wall of an electrical direct-current metallurgical furnace9US 4,685,112 AIrsid · 1987
- Electrode arrangement in heat run vessels7US 4,628,516 AMannesmann Aktiengesellschaft · 1986
- DC arc furnace7US 4,947,405 ADaidotokushijo Kabushikikaisha · 1990