C04B 2235/524
Non-oxidic
Official title: Non-oxidic, e.g. borides, carbides, silicides or nitrides
C04B2235/524 (Non-oxidic) appears on 1,559 US grants and 1,622 published applications in this corpus.
Search patents in C04B- Granted patents
- 1,559
- Published applications
- 1,622
- Assignees
- 582
- Inventors
- 2,946
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 13 | 0 |
| 1989 | 20 | 0 |
| 1990 | 27 | 0 |
| 1991 | 32 | 0 |
| 1992 | 35 | 0 |
| 1993 | 31 | 0 |
| 1994 | 33 | 0 |
| 1995 | 31 | 0 |
| 1996 | 29 | 0 |
| 1997 | 28 | 0 |
| 1998 | 21 | 0 |
| 1999 | 30 | 0 |
| 2000 | 22 | 0 |
| 2001 | 26 | 6 |
| 2002 | 20 | 35 |
| 2003 | 15 | 40 |
| 2004 | 23 | 35 |
| 2005 | 22 | 41 |
| 2006 | 19 | 42 |
| 2007 | 22 | 48 |
| 2008 | 25 | 41 |
| 2009 | 15 | 54 |
| 2010 | 23 | 28 |
| 2011 | 24 | 54 |
| 2012 | 25 | 42 |
| 2013 | 25 | 55 |
| 2014 | 34 | 49 |
| 2015 | 41 | 54 |
| 2016 | 37 | 84 |
| 2017 | 65 | 97 |
| 2018 | 66 | 86 |
| 2019 | 79 | 87 |
| 2020 | 83 | 102 |
| 2021 | 87 | 108 |
| 2022 | 64 | 72 |
| 2023 | 84 | 109 |
| 2024 | 88 | 109 |
| 2025 | 77 | 93 |
| 2026 | 70 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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.
- Polymer-derived ceramic reinforced with boron nitride1 Sep 2026US 12,723,006 B2North Carolina State University
- Block copolymer porous carbon fibers and uses thereof25 Aug 2026US 12,715,819 B2Virginia Tech Intellectual Properties, Inc.
- Exfoliated boron nitride for interface coating for ceramic matrix composites18 Aug 2026US 12,709,579 B2Rtx Corporation
- Fibrous preform of a friction part18 Aug 2026US 12,709,580 B2Safran Landing Systems
- Thermal insulation materials suitable for use at high temperatures, and process for making said materials8 Oct 2026US 2026/0308071 A1Mersen Scotland Holytown Limited
- Processes for the preparation of (3s,4r)-3-ethyl-4-(3h-imidazo[1,2-a]pyrrolo[2,3-e]-pyrazin-8-yl)-n-(2,2,2-trifluoroethyl)pyrrolidine-1-carboxamide and solid state forms thereof8 Oct 2026US 2026/0308162 A1
- Fiber composite felt8 Oct 2026US 2026/0309422 A1Sgl Carbon SE
- Preform tapered hole press for improved cvi-cmc microstructure1 Oct 2026US 2026/0296980 A1Rtx Corporation
- Cmc having roughened surfaces for improved heat transfer24 Sep 2026US 2026/0285769 A1Rtx Corporation
Most cited
By later US patents
- Carbon fibrils, method for producing same and compositions containing same361US 4,663,230 AHyperion Catalysis International, Inc. · 1987
- Nanotube fiber reinforced composite materials and method of producing fiber reinforced composites261US 6,934,600 B2Auburn University · 2005
- Carbon fibrils and method for producing same250US 5,165,909 AHyperion Catalysis Int'l., Inc. · 1992
- Electrostatic chuck having gas cavity and method244US 6,310,755 B1APPLIED Materials.Inc. · 2001
- Fiber reinforced ceramic matrix laminate164US 5,376,598 AThe Boeing Company · 1994