C04B 2235/3847
Tungsten carbides
C04B2235/3847 (Tungsten carbides) appears on 228 US grants and 286 published applications in this corpus.
Search patents in C04B- Granted patents
- 228
- Published applications
- 286
- Assignees
- 123
- Inventors
- 536
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 6 |
| 2003 | 7 | 7 |
| 2004 | 5 | 7 |
| 2005 | 4 | 11 |
| 2006 | 4 | 8 |
| 2007 | 7 | 10 |
| 2008 | 2 | 5 |
| 2009 | 1 | 8 |
| 2010 | 9 | 12 |
| 2011 | 6 | 15 |
| 2012 | 4 | 11 |
| 2013 | 6 | 17 |
| 2014 | 12 | 8 |
| 2015 | 13 | 10 |
| 2016 | 12 | 17 |
| 2017 | 12 | 25 |
| 2018 | 8 | 12 |
| 2019 | 16 | 19 |
| 2020 | 21 | 14 |
| 2021 | 11 | 15 |
| 2022 | 14 | 13 |
| 2023 | 6 | 12 |
| 2024 | 8 | 10 |
| 2025 | 7 | 7 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cubic boron nitride sintered material and tool22 Sep 2026US 12,741,912 B2Sumitomo Electric Hardmetal Corp.
- High-entropy carbide ceramic and rare earth-containing high-entropy carbide ceramic, fibers and precursors thereof, and methods for preparing the same11 Aug 2026US 12,703,667 B2Institute of Chemistry, Chinese Academy of Sciences
- Gradient structure cubic boron nitride composite sheet and preparation method thereof30 Jun 2026US 12,668,549 B2Central South University
- Composite material sintered body, joined assembly, semiconductor manufacturing apparatus member, and composite material sintered body manufacturing method21 Apr 2026US 12,606,494 B2NGK Insulators, Ltd.
- Cubic boron nitride sintered material and tool10 Mar 2026US 12,571,079 B2Sumitomo Electric Hardmetal Corp.
- Fabrication of ceramic matrix composites13 Aug 2026US 2026/0234069 A1Rtx Corporation
- Slurry infiltration of sacrificial material23 Jul 2026US 2026/0209127 A1Rtx Corporation
- Cubic boron nitride sintered body, coated cubic boron nitride sintered body, and tool having same2 Jul 2026US 2026/0184642 A1Tungaloy Corporation
- Ceramic sintered body and plasma-generating electrode25 Jun 2026US 2026/0176208 A1Niterra Co., Ltd.
- Cubic boron nitride sintered material and tool5 Mar 2026US 2026/0062355 A1Sumitomo Electric Hardmetal Corp.
Most cited
By later US patents
- Atomic layer controlled deposition on particle surfaces225US 6,613,383 B1The Regents of the University of Colorado · 2003
- 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
- Diamond compacts98US 4,985,051 AThe Australian National University · 1991
- Process for producing fiber reinforced composite74US 5,876,659 AHitachi, Ltd. · 1999