C01B 21/0726
Preparation by carboreductive nitridation
Official title: {Preparation by carboreductive nitridation}
C01B21/0726 (Preparation by carboreductive nitridation) appears on 63 US grants and 32 published applications in this corpus.
Search patents in C01B- Granted patents
- 63
- Published applications
- 32
- Assignees
- 43
- Inventors
- 162
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 3 |
| 2014 | 0 | 0 |
| 2015 | 6 | 4 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 3 |
| 2019 | 5 | 3 |
| 2020 | 0 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 3 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aluminum nitride powder and method for manufacturing the same12 Aug 2025US 12,384,678 B2Tokuyama Corporation
- Aluminum nitride particles30 May 2023US 11,661,494 B2Tokuyama Corporation
- Aluminum nitride synthesis from nut shells14 Mar 2023US 11,602,158 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Aluminum nitride particle10 May 2022US 11,325,830 B2Tokuyama Corporation
- Aluminum nitride particles5 Oct 2021US 11,136,271 B2NGK Insulators, Ltd.
- Aluminum Nitride Powder17 Sep 2026US 2026/0274671 A1Tokuyama Corporation
- Method for preparing aluminum nitride powder12 Jun 2025US 2025/0187917 A1National Chung Shan Institute of Science and Technology
- Microwave heating apparatus, and method for manufacturing aluminum nitride by using same11 Jul 2024US 2024/0237166 A1
- Method for preparing aluminum nitride powder based on aluminum metal20 Jun 2024US 2024/0199421 A1National Chung Shan Institute of Science and Technology
- Spherical aln particles and method of production of same, and composite material containing same5 Oct 2023US 2023/0312343 A1Nippon Steel Chemical & Material Co., Ltd.
Most cited
By later US patents
- Fine powder of aluminum nitride, composition and sintered body thereof and processes for their production52US 4,618,592 ATokuyama Soda Kabushiki Kaisha · 1986
- Method of making metal carbide and nitride powders40US 4,784,839 AAtochem · 1988
- Process for production of readily sinterable aluminum nitride powder27US 4,615,863 AKabushiki Kaisha Toshiba · 1986
- Process of producing aluminum and titanium nitrides26US 5,114,695 AAlcon International Limited · 1992
- Process for preparing fine powders of aluminum nitride19US 5,151,260 ATemay S.p.A. · 1992