C04B 2235/723
Oxygen content
C04B2235/723 (Oxygen content) appears on 158 US grants and 209 published applications in this corpus.
Search patents in C04B- Granted patents
- 158
- Published applications
- 209
- Assignees
- 105
- Inventors
- 486
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 7 |
| 2004 | 6 | 7 |
| 2005 | 3 | 10 |
| 2006 | 11 | 5 |
| 2007 | 2 | 7 |
| 2008 | 1 | 4 |
| 2009 | 6 | 10 |
| 2010 | 5 | 7 |
| 2011 | 6 | 11 |
| 2012 | 7 | 9 |
| 2013 | 8 | 14 |
| 2014 | 2 | 3 |
| 2015 | 15 | 12 |
| 2016 | 6 | 4 |
| 2017 | 5 | 8 |
| 2018 | 5 | 5 |
| 2019 | 5 | 5 |
| 2020 | 2 | 12 |
| 2021 | 7 | 9 |
| 2022 | 7 | 10 |
| 2023 | 9 | 19 |
| 2024 | 5 | 19 |
| 2025 | 13 | 7 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Powder of gallium nitride and method for producing the same20 Jan 2026US 12,528,711 B2Tosoh Corporation
- Copper-coated titanium diboride articles13 Jan 2026US 12,522,935 B2Alcoa USA Corp.
- Gallium nitride particles and method for producing same6 Jan 2026US 12,515,952 B2Tosoh Corporation
- Silicon nitride sintered substrate6 Jan 2026US 12,515,953 B2Tokuyama Corporation
- Silicon nitride substrate and method of manufacturing the same21 Oct 2025US 12,451,406 B2Proterial, Ltd.
- Inorganic particle dispersed slurry composition and method for producing inorganic sintered body9 Jul 2026US 2026/0193140 A1Sekisui Chemical Co., Ltd.
- Copper-coated titanium diboride articles16 Apr 2026US 2026/0103816 A1Alcoa USA Corp.
- Gallium nitride sintered body and method for producing the same20 Nov 2025US 2025/0353793 A1Tosoh Corporation
- Silicon nitride sintered compact, silicon nitride substrate, silicon nitride circuit board, and semiconductor device17 Jul 2025US 2025/0230575 A1Kabushiki Kaisha Toshiba
- Gallium nitride sintered body and method for producing same26 Jun 2025US 2025/0206673 A1Tosoh Corporation
Most cited
By later US patents
- Low oxygen cubic boron nitride and its production71US 7,001,577 B2Diamond innovaitons, Inc. · 2006
- Transition metal alloys for use as a gate electrode and devices incorporating these alloys69US 7,030,430 B2Intel Corporation · 2006
- Ceramic glow plug49US 5,750,958 AKYOCERA Corporation · 1998
- Copper circuit junction substrate and method of producing the same49US 6,261,703 B1Sumitomo Electric Industries, Ltd. · 2001
- Nitride-based, red-emitting phosphors39US 8,274,215 B2Intematix Corporation · 2012