C01B 21/0826
Silicon aluminium oxynitrides, i.e. sialons
Official title: {Silicon aluminium oxynitrides, i.e. sialons}
C01B21/0826 (Silicon aluminium oxynitrides, i.e. sialons) appears on 63 US grants and 44 published applications in this corpus.
Search patents in C01B- Granted patents
- 63
- Published applications
- 44
- Assignees
- 43
- Inventors
- 146
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 3 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 2 | 6 |
| 2013 | 2 | 2 |
| 2014 | 7 | 5 |
| 2015 | 3 | 1 |
| 2016 | 2 | 1 |
| 2017 | 3 | 3 |
| 2018 | 3 | 3 |
| 2019 | 3 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 3 |
| 2022 | 5 | 2 |
| 2023 | 1 | 3 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Phosphor powder, light-emitting device, image display device, and illumination device4 Aug 2026US 12,698,441 B2Denka Company Limited
- Beta-sialon phosphor and light emitting device1 Apr 2025US 12,264,274 B2Denka Company Limited
- Narrow band emitting SiAION phosphor12 Mar 2024US 11,926,775 B2Lumileds LLC
- Method of producing beta-sialon fluorescent material12 Sep 2023US 11,753,302 B2Nichia Corporation
- Method of producing beta-sialon fluorescent material29 Nov 2022US 11,512,248 B2Nichia Corporation
- Phosphor powder, composite, and light-emitting device9 May 2024US 2024/0150647 A1Denka Company Limited
- Phosphor powder, light-emitting device, image display device, and illumination device11 Jan 2024US 2024/0010914 A1Denka Company Limited
- Electrode, energy storage device and method9 Mar 2023US 2023/0077180 A1Institutt for Energiteknikk
- Method of producing beta-sialon fluorescent material9 Feb 2023US 2023/0045233 A1Nichia Corporation
- Narrow Band Emitting SiAlON Phosphor5 Jan 2023US 2023/0002671 A1Lumileds LLC
Most cited
By later US patents
- Ceramic materials41US 3,991,166 AJoseph Lucas (Industries) Limited · 1976
- Phosphor and use thereof18US 8,206,611 B2Independent Administrative Institution National Institute for Materials Science · 2012
- Process for producing a solid solution of aluminum oxide in silicon nitride16US 3,960,581 AUniversity of Utah · 1976
- Process for producing beta'-silicon aluminum oxynitride (B'-SiAlON) using discrete particles16US 4,499,193 AAluminum Company of America · 1985
- Method of manufacturing .beta.'SiAlON compounds14US 4,147,759 ACeraver · 1979