C04B 2235/3873
Silicon nitrides
Official title: Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride
C04B2235/3873 (Silicon nitrides) appears on 697 US grants and 835 published applications in this corpus.
Search patents in C04B- Granted patents
- 697
- Published applications
- 835
- Assignees
- 421
- Inventors
- 1,697
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 14 | 0 |
| 2000 | 13 | 0 |
| 2001 | 6 | 3 |
| 2002 | 6 | 16 |
| 2003 | 12 | 28 |
| 2004 | 15 | 26 |
| 2005 | 14 | 38 |
| 2006 | 30 | 49 |
| 2007 | 22 | 29 |
| 2008 | 15 | 44 |
| 2009 | 28 | 52 |
| 2010 | 23 | 49 |
| 2011 | 32 | 32 |
| 2012 | 27 | 34 |
| 2013 | 36 | 34 |
| 2014 | 30 | 23 |
| 2015 | 20 | 21 |
| 2016 | 21 | 27 |
| 2017 | 25 | 32 |
| 2018 | 29 | 30 |
| 2019 | 27 | 43 |
| 2020 | 27 | 33 |
| 2021 | 28 | 36 |
| 2022 | 20 | 31 |
| 2023 | 24 | 36 |
| 2024 | 21 | 31 |
| 2025 | 28 | 37 |
| 2026 | 14 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ceramic, probe guiding member, probe card and socket for package inspection6 Oct 2026US 12,753,124 B2Ferrotec Material Technologies Corporation
- Polymer-derived ceramic reinforced with boron nitride1 Sep 2026US 12,723,006 B2North Carolina State University
- High temperature ceramic powder systems14 Jul 2026US 12,679,773 B2Arizona Board of Regents on Behalf of the University of Arizona
- Method for manufacturing silicon nitride substrate14 Jul 2026US 12,679,774 B2Oci Company Ltd.
- Coating layer with slow SIO2 crystallization rate14 Jul 2026US 12,679,782 B2ROLLS-ROYCE plc
- Ceramic sintered compact, wear-resistant member, and method of manufacturing ceramic sintered compact10 Sep 2026US 2026/0265151 A1Niterra Materials Co., Ltd.
- Composition for manufacturing silicon nitride substrate and silicon nitride substrate manufactured thereby27 Aug 2026US 2026/0250206 A1Amosense Co., Ltd.
- Ceramic, probe guide component, probe card, and package test socket20 Aug 2026US 2026/0242292 A1Ferrotec Corporation
- Improved aluminum-containing nitride ceramic matrix composite, method of making, and method of use20 Aug 2026US 2026/0242660 A1SLT Technologies, Inc.
- Fabrication of ceramic matrix composites13 Aug 2026US 2026/0234069 A1Rtx Corporation
Most cited
By later US patents
- Atomic layer controlled deposition on particle surfaces225US 6,613,383 B1The Regents of the University of Colorado · 2003
- Ceramic structural body188US 5,914,187 AIbiden Co., Ltd. · 1999
- Nanocoated primary particles and method for their manufacture141US 6,913,827 B2The Regents of the University of Colorado · 2005
- Insulating and functionalizing fine metal-containing particles with conformal ultra-thin films137US 6,713,177 B2The Regents of the University of Colorado · 2004
- Method for producing metal and ceramic sintered bodies and coatings112US 5,590,387 AH. C. Starck GmbH · 1996