B22F 9/22
Using gaseous reductors
Official title: using gaseous reductors
B22F9/22 (Using gaseous reductors) appears on 281 US grants and 221 published applications in this corpus.
Search patents in B22F- Granted patents
- 281
- Published applications
- 221
- Assignees
- 202
- Inventors
- 775
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 3 |
| 2003 | 10 | 12 |
| 2004 | 4 | 3 |
| 2005 | 3 | 4 |
| 2006 | 4 | 5 |
| 2007 | 2 | 7 |
| 2008 | 3 | 9 |
| 2009 | 5 | 9 |
| 2010 | 5 | 6 |
| 2011 | 6 | 7 |
| 2012 | 5 | 9 |
| 2013 | 4 | 9 |
| 2014 | 10 | 15 |
| 2015 | 6 | 5 |
| 2016 | 5 | 8 |
| 2017 | 6 | 13 |
| 2018 | 7 | 11 |
| 2019 | 7 | 11 |
| 2020 | 13 | 15 |
| 2021 | 9 | 7 |
| 2022 | 11 | 14 |
| 2023 | 10 | 11 |
| 2024 | 4 | 15 |
| 2025 | 3 | 7 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Samarium-iron-nitrogen based magnet powder and samarium-iron-nitrogen based magnet1 Sep 2026US 12,725,721 B2National Institute of Advanced Industrial Science and Technology
- Alloy powder and preparation method therefor26 May 2026US 12,636,701 B2LG Electronics Inc.
- Systems and methods for high reactant conversion through multiple reactant flow ratio staging21 Apr 2026US 12,605,764 B2Ohio State Innovation Foundation
- Low-oxygen ALSc alloy powders and method for the production thereof24 Mar 2026US 12,584,194 B2Taniobis GmbH
- Polymer-mediated particle coarsening within hollow silica shell nanoreactors24 Feb 2026US 12,558,725 B2Northwestern University
- Mesoporous nickel powder and preparation method therefor, nickel-phosphorus catalyst system and adiponitrile preparation method3 Sep 2026US 2026/0257212 A1Shandong Nhu Fine Chemical Science and Technology Company Ltd.
- Systems and methods for high reactant conversion through multiple reactant flow ratio staging30 Jul 2026US 2026/0216789 A1Ohio State Innovation Foundation
- Alloy catalyst and method for preparing the same23 Jul 2026US 2026/0209969 A1National Cheng Kung University
- Low-oxygen alsc alloy powders and method for the production thereof25 Jun 2026US 2026/0176720 A1Taniobis GmbH
- Composite copper nanoparticles and method for manufacturing composite copper nanoparticles7 May 2026US 2026/0124679 A1Taiyo Nippon Sanso Corporation
Most cited
By later US patents
- Method for producing tantallum/niobium metal powders by the reduction of their oxides with gaseous magnesium86US 6,171,363 B2H. C. Starck GmbH · 2001
- Process for plasma synthesis of rhenium nano and micro powders, and for coatings and near net shape deposits thereof and apparatus therefor73US 7,494,527 B2Tekna Plasma Systems Inc. · 2009
- Metal powders produced by the reduction of the oxides with gaseous magnesium62US 6,558,447 B1H. C. Starck GmbH · 2003
- Spray conversion process for the production of nanophase composite powders49US 5,352,269 A1994
- Hydrometallurigcal process for producing finely divided spherical precious metal based powders43US 4,731,110 AGTE Products Corporation · 1988