C04B 35/584
Based on silicon nitride
Official title: based on silicon nitride
C04B35/584 (Based on silicon nitride) appears on 1,885 US grants and 1,123 published applications in this corpus.
Search patents in C04B- Granted patents
- 1,885
- Published applications
- 1,123
- Assignees
- 662
- Inventors
- 3,343
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 17 | 0 |
| 1978 | 32 | 0 |
| 1979 | 15 | 0 |
| 1980 | 17 | 0 |
| 1981 | 26 | 0 |
| 1982 | 27 | 0 |
| 1983 | 33 | 0 |
| 1984 | 32 | 0 |
| 1985 | 42 | 0 |
| 1986 | 40 | 0 |
| 1987 | 53 | 0 |
| 1988 | 43 | 0 |
| 1989 | 71 | 0 |
| 1990 | 68 | 0 |
| 1991 | 71 | 0 |
| 1992 | 91 | 0 |
| 1993 | 71 | 0 |
| 1994 | 59 | 0 |
| 1995 | 41 | 0 |
| 1996 | 47 | 0 |
| 1997 | 42 | 0 |
| 1998 | 42 | 0 |
| 1999 | 51 | 0 |
| 2000 | 38 | 0 |
| 2001 | 36 | 9 |
| 2002 | 26 | 33 |
| 2003 | 24 | 31 |
| 2004 | 19 | 32 |
| 2005 | 23 | 33 |
| 2006 | 28 | 48 |
| 2007 | 14 | 34 |
| 2008 | 16 | 47 |
| 2009 | 22 | 45 |
| 2010 | 31 | 42 |
| 2011 | 27 | 35 |
| 2012 | 29 | 42 |
| 2013 | 39 | 38 |
| 2014 | 33 | 37 |
| 2015 | 28 | 42 |
| 2016 | 34 | 40 |
| 2017 | 30 | 41 |
| 2018 | 38 | 50 |
| 2019 | 30 | 65 |
| 2020 | 43 | 47 |
| 2021 | 33 | 67 |
| 2022 | 37 | 47 |
| 2023 | 39 | 62 |
| 2024 | 53 | 63 |
| 2025 | 43 | 66 |
| 2026 | 28 | 27 |
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
- Ceramic matrix composites and their preforms11 Aug 2026US 12,703,169 B2Rtx Corporation
- Ceramic scribe substrate, ceramic substrate, method for manufacturing ceramic scribe substrate, method for manufacturing ceramic substrate, method for manufacturing ceramic circuit board, and method for manufacturing semiconductor element14 Jul 2026US 12,679,771 B2Niterra Materials Co., Ltd.
- High temperature ceramic powder systems14 Jul 2026US 12,679,773 B2Arizona Board of Regents on Behalf of the University of Arizona
- Ceramic particles for use in a solar power tower17 Sep 2026US 2026/0276244 A1Carbo Ceramics Inc.
- 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.
- Composite panel core structure27 Aug 2026US 2026/0250208 A1General Electric Company
- Additive manufacturing powders with improved physical characteristics, method of manufacture and use thereof13 Aug 2026US 2026/0233302 A1Tekna Plasma Systems Inc.
Most cited
By later US patents
- Carbon fibrils, method for producing same and compositions containing same361US 4,663,230 AHyperion Catalysis International, Inc. · 1987
- Solid freeform fabrication methods283US 5,738,817 ARutgers, The State University · 1998
- Carbon fibrils and method for producing same250US 5,165,909 AHyperion Catalysis Int'l., Inc. · 1992
- Solid freeform fabrication methods223US 5,900,207 ARutgers, the State University Old Queens · 1999
- Ceramic structural body188US 5,914,187 AIbiden Co., Ltd. · 1999