C04B 35/62868
Boron nitride
Official title: {Boron nitride}
C04B35/62868 (Boron nitride) appears on 341 US grants and 348 published applications in this corpus.
Search patents in C04B- Granted patents
- 341
- Published applications
- 348
- Assignees
- 104
- Inventors
- 607
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 12 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 1 |
| 2002 | 6 | 10 |
| 2003 | 5 | 6 |
| 2004 | 5 | 3 |
| 2005 | 4 | 8 |
| 2006 | 4 | 12 |
| 2007 | 1 | 10 |
| 2008 | 4 | 2 |
| 2009 | 6 | 11 |
| 2010 | 6 | 5 |
| 2011 | 5 | 11 |
| 2012 | 4 | 9 |
| 2013 | 4 | 12 |
| 2014 | 5 | 10 |
| 2015 | 6 | 8 |
| 2016 | 6 | 25 |
| 2017 | 19 | 20 |
| 2018 | 13 | 26 |
| 2019 | 14 | 19 |
| 2020 | 31 | 33 |
| 2021 | 17 | 21 |
| 2022 | 14 | 13 |
| 2023 | 21 | 21 |
| 2024 | 22 | 26 |
| 2025 | 13 | 16 |
| 2026 | 17 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- Exfoliated boron nitride for interface coating for ceramic matrix composites18 Aug 2026US 12,709,579 B2Rtx Corporation
- Multilayer coating for oxidation protection30 Jun 2026US 12,668,550 B2Rtx Corporation
- Method for densification of CMC article9 Jun 2026US 12,649,695 B2Rtx Corporation
- Slurry composition and method of producing a ceramic matrix composite with reduced matrix defects2 Jun 2026US 12,643,830 B1Rolls-Royce High Temperature Composites Inc.
- Fabrication of ceramic matrix composites13 Aug 2026US 2026/0234069 A1Rtx Corporation
- Fibrous preform and method for manufacturing same to produce a part made of a composite material having a ceramic matrix4 Jun 2026US 2026/0152443 A1Safran Ceramics
- Method for coating reinforced fiber4 Jun 2026US 2026/0152444 A1IHI Corporation
- Infiltration of a fibrous structure comprising a liquid silicon reactive layer28 May 2026US 2026/0146005 A1Safran Ceramics
- Advanced polymer impregnation and pyrolysis of ceramic matrix composites28 May 2026US 2026/0146007 A1
Most cited
By later US patents
- BN coating of ceramic fibers for ceramic fiber composites139US 4,642,271 AThe United States of America as represented by the Secretary of the Navy · 1987
- Fiber reinforced composite product97US 3,991,248 ADucommun Incorporated · 1976
- Continuous fiber reinforced composites and methods, apparatuses, and compositions for making the same97US 6,899,777 B2Advanced Ceramics Research, Inc. · 2005
- Fiber-containing composite89US 5,015,540 AGeneral Electric Company · 1991
- Method of applying oxidation resistant coating on carbon fibers75US 5,562,966 AScience Applications International Corporation · 1996