C04B 2235/3852
Nitrides
Official title: Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
C04B2235/3852 (Nitrides) appears on 1,486 US grants and 1,823 published applications in this corpus.
Search patents in C04B- Granted patents
- 1,486
- Published applications
- 1,823
- Assignees
- 720
- Inventors
- 3,377
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 11 | 0 |
| 1991 | 9 | 0 |
| 1992 | 14 | 0 |
| 1993 | 17 | 0 |
| 1994 | 14 | 0 |
| 1995 | 15 | 0 |
| 1996 | 19 | 0 |
| 1997 | 10 | 0 |
| 1998 | 14 | 0 |
| 1999 | 21 | 0 |
| 2000 | 16 | 0 |
| 2001 | 10 | 5 |
| 2002 | 13 | 30 |
| 2003 | 28 | 57 |
| 2004 | 30 | 59 |
| 2005 | 30 | 78 |
| 2006 | 45 | 78 |
| 2007 | 41 | 65 |
| 2008 | 42 | 72 |
| 2009 | 50 | 82 |
| 2010 | 49 | 92 |
| 2011 | 53 | 63 |
| 2012 | 49 | 72 |
| 2013 | 64 | 94 |
| 2014 | 59 | 66 |
| 2015 | 58 | 53 |
| 2016 | 67 | 70 |
| 2017 | 53 | 83 |
| 2018 | 66 | 60 |
| 2019 | 66 | 99 |
| 2020 | 57 | 76 |
| 2021 | 65 | 88 |
| 2022 | 66 | 83 |
| 2023 | 60 | 107 |
| 2024 | 58 | 82 |
| 2025 | 65 | 73 |
| 2026 | 50 | 36 |
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
- Method to control dissolution of silicon carbide during fabrication of a ceramic matrix composite6 Oct 2026US 12,753,127 B1Rolls-Royce High Temperature Composites Inc.
- Annealing separator composition for grain- oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet6 Oct 2026US 12,753,457 B2Posco
- Cubic boron nitride sintered material and tool22 Sep 2026US 12,741,912 B2Sumitomo Electric Hardmetal Corp.
- Cubic boron nitride sintered material and tool8 Sep 2026US 12,729,164 B2Sumitomo Electric Hardmetal Corp.
- Sintering additives for improved microstructure control8 Oct 2026US 2026/0308070 A1UT-Battelle, LLC
- Process for improving flash sintering of ceramics and improved ceramics8 Oct 2026US 2026/0308072 A1The Regents of the University of Colorado, a body corporate
- Ceramic sintered compact, wear-resistant member, and method of manufacturing ceramic sintered compact10 Sep 2026US 2026/0265151 A1Niterra Materials Co., Ltd.
- Aluminum nitride sintered body27 Aug 2026US 2026/0250205 A1NGK Corporation
- Composition for manufacturing silicon nitride substrate and silicon nitride substrate manufactured thereby27 Aug 2026US 2026/0250206 A1Amosense Co., Ltd.
Most cited
By later US patents
- Composite abrasive compact having high thermal stability403US 5,127,923 AUS Synthetic Corporation · 1992
- 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
- Composite synthetic materials149US 4,960,643 A1990
- Rigid porous carbon structures, methods of making, methods of using and products containing same143US 6,099,965 AHyperion Catalysis International, Inc. · 2000