B22D 1/002
Treatment with gases
Official title: {Treatment with gases (C21C7/072, C22B9/05 take precedence)}
B22D1/002 (Treatment with gases) appears on 258 US grants and 118 published applications in this corpus.
Search patents in B22D- Granted patents
- 258
- Published applications
- 118
- Assignees
- 171
- Inventors
- 611
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 12 | 0 |
| 1984 | 10 | 0 |
| 1985 | 13 | 0 |
| 1986 | 9 | 0 |
| 1987 | 15 | 0 |
| 1988 | 16 | 0 |
| 1989 | 11 | 0 |
| 1990 | 14 | 0 |
| 1991 | 11 | 0 |
| 1992 | 10 | 0 |
| 1993 | 10 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 2 |
| 2002 | 2 | 1 |
| 2003 | 4 | 4 |
| 2004 | 3 | 3 |
| 2005 | 1 | 6 |
| 2006 | 0 | 3 |
| 2007 | 1 | 1 |
| 2008 | 2 | 3 |
| 2009 | 2 | 0 |
| 2010 | 2 | 3 |
| 2011 | 1 | 3 |
| 2012 | 1 | 2 |
| 2013 | 0 | 2 |
| 2014 | 3 | 5 |
| 2015 | 1 | 7 |
| 2016 | 7 | 12 |
| 2017 | 5 | 10 |
| 2018 | 5 | 2 |
| 2019 | 7 | 7 |
| 2020 | 5 | 5 |
| 2021 | 3 | 8 |
| 2022 | 6 | 3 |
| 2023 | 3 | 8 |
| 2024 | 4 | 6 |
| 2025 | 1 | 4 |
| 2026 | 1 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Biodegradable magnesium alloy without rare earth elements, preparation method and use thereof27 Jan 2026US 12,534,783 B2Shanghai INT Medical Instruments Co., Ltd.
- Furnace, fluid feed component, fluid reforming system and method of reforming a fluid15 Jul 2025US 12,359,872 B2Burnstar Technologies (Pty) Ltd
- Operation method of ladle refining treatment24 Dec 2024US 12,172,208 B2Jfe Steel Corporation
- Nickel-based superalloy steel and preparation method thereof10 Sep 2024US 12,084,748 B2Zhejiang Dalong New Materials Co., Ltd.
- Slurrying device for semi-solid slurry16 Apr 2024US 11,958,104 B2Zhuhai Runxingtai Electrical Co., Ltd.
- Gas purge plug and system for easy installation of the gas purge plug in a metallurgical vessel9 Jul 2026US 2026/0194160 A1Vesuvius Group S. A.
- Refractory gas purging plug4 Jun 2026US 2026/0151827 A1Refractory Intellectual Property GmbH & Co.KG
- Refractory gas purging plug and method for controlling the conduction of gas to a refractory gas purging plug14 May 2026US 2026/0132988 A1Refractory Intellectual Property GmbH & Co.KG
- Rotary device for treating molten metal7 May 2026US 2026/0124673 A1
- Method for manufacturing high-chromium (cr) molten steel, method for manufacturing cast piece, and method for manufacturing press roll16 Apr 2026US 2026/0103769 A1Posco
Most cited
By later US patents
- Universal coupling117US 6,358,467 B1Metaullics Systems Co., L.P. · 2002
- Monolithic ceramic gas diffuser for injecting gas into a molten metal bath102US 6,199,836 B1Blasch Precision Ceramics, Inc. · 2001
- Gas stir plug device with visual wear indicator21US 5,249,778 ADolomitwerke GmbH · 1993
- Method for the refining of iron-based melts19US 4,200,452 ADSO "Cherna Metalurgia" · 1980
- Device for introducing gas into molten metal18US 4,396,179 A1983